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[doldaconnect.git] / daemon / fnet-dc.c
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d3372da9 1/*
2 * Dolda Connect - Modular multiuser Direct Connect-style client
302a2600 3 * Copyright (C) 2004 Fredrik Tolf <fredrik@dolda2000.com>
d3372da9 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19#include <stdlib.h>
20#include <stdio.h>
21#include <wchar.h>
d3372da9 22#include <unistd.h>
23#include <fcntl.h>
24#include <string.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
d3372da9 27#include <wctype.h>
28#include <time.h>
29#include <errno.h>
30#include <bzlib.h>
31#include <zlib.h>
32#include <sys/stat.h>
f9455250 33#include <stdint.h>
d3372da9 34
35#ifdef HAVE_CONFIG_H
36#include <config.h>
37#endif
38#include "filenet.h"
39#include "log.h"
40#include "module.h"
41#include "utils.h"
42#include "client.h"
43#include "transfer.h"
44#include "sysevents.h"
45#include "net.h"
8b17e919 46#include <tiger.h>
d3372da9 47
48/*
49 * The Direct Connect protocol is extremely ugly. Thus, this code must
50 * also be a bit ugly in certain places. Please forgive me. =/
51 *
52 * This also means that there might be some pieces of the code that
53 * look completely illogical to you, and you think that you may make
54 * them much neater/better. However, in many cases it might just be
55 * that it's required to cope with some oddity of the protocol, such
56 * as the amazingly ugly delayed key response in the peer protocol.
57 */
58
59/* I assume this is the correct character set to use for DC,
60 * considering it was developed without i18n support under Windows */
61#define DCCHARSET "windows-1252"
62
d3372da9 63#define PEER_CMD 0
9a2d6cb8 64#define PEER_STOP 1
65#define PEER_TRNS 2
66#define PEER_SYNC 3
67#define PEER_TTHL 4
d3372da9 68
69#define CPRS_NONE 0
70#define CPRS_ZLIB 1
71
72struct command
73{
74 char *name;
75 void (*handler)(struct socket *sk, void *data, char *cmd, char *args);
9a2d6cb8 76 int stop;
8cb2d75b 77 int limit;
d3372da9 78};
79
80struct qcommand
81{
82 struct qcommand *next;
83 char *string;
84};
85
c256f071
FT		 86struct qcmdqueue
87{
88 struct qcommand *f, *l;
8cb2d75b 89 int size;
c256f071
FT		 90};
91
d3372da9 92struct dchub
93{
ffa81d5f 94 struct socket *sk;
d3372da9 95 char *inbuf;
96 size_t inbufdata, inbufsize;
c256f071 97 struct qcmdqueue queue;
1c4b02cd 98 int extended, dcppemu;
1d85f24b 99 char *charset;
d3372da9 100 char *nativename;
101 char *nativenick;
08b74f8c 102 char **supports;
d3372da9 103};
104
105struct dcexppeer
106{
107 struct dcexppeer *next, *prev;
108 char *nick;
109 struct fnetnode *fn;
110 struct timer *expire;
111};
112
113struct dcpeer
114{
115 struct dcpeer *next, *prev;
116 struct socket *sk;
117 struct fnetnode *fn;
118 char *inbuf;
119 size_t inbufdata, inbufsize;
dcf7a1a2 120 off_t curread, totalsize;
2bf4942d 121 int close;
1e9d82b1 122 struct timer *timeout;
c256f071 123 struct qcmdqueue queue;
d3372da9 124 struct transfer *transfer;
1ce5968e 125 struct socket *trpipe;
d3372da9 126 int state;
127 int ptclose; /* Close after transfer is complete */
128 int accepted; /* If false, we connected, otherwise, we accepted */
1c4b02cd 129 int extended, dcppemu;
d3372da9 130 int direction; /* Using the constants from transfer.h */
131 int compress;
df873cd0 132 int hascurpos, fetchingtthl, notthl;
9a2d6cb8 133 struct tigertreehash tth;
1d85f24b 134 char *charset;
d3372da9 135 void *cprsdata;
d3372da9 136 char *key;
137 char *nativename;
138 char **supports;
139 wchar_t *wcsname;
140};
141
142static struct fnet dcnet;
d3372da9 143static struct socket *udpsock = NULL;
d1ef0200 144static struct lport *tcpsock = NULL;
d3372da9 145static struct dcpeer *peers = NULL;
146int numdcpeers = 0;
147static struct dcexppeer *expected = NULL;
148static char *hmlistname = NULL;
149static char *xmllistname = NULL;
150static char *xmlbz2listname = NULL;
6305c428 151static struct timer *listwritetimer = NULL;
d3372da9 152
1ce5968e 153static struct socket *mktrpipe(struct dcpeer *peer);
cab0b442 154static void peerconnect(struct socket *sk, int err, struct fnetnode *fn);
d3372da9 155static void freedcpeer(struct dcpeer *peer);
cab0b442 156static void transread(struct socket *sk, struct dcpeer *peer);
157static void transerr(struct socket *sk, int err, struct dcpeer *peer);
158static void transwrite(struct socket *sk, struct dcpeer *peer);
d3372da9 159static void updatehmlist(void);
160static void updatexmllist(void);
161static void updatexmlbz2list(void);
9a2d6cb8 162static void requestfile(struct dcpeer *peer);
6305c428 163static void updatelists(int now);
c3d01fa9 164static int trdestroycb(struct transfer *transfer, struct dcpeer *peer);
d3372da9 165
166static int reservedchar(unsigned char c)
167{
168 return((c == 0) || (c == 5) || (c == 124) || (c == 96) || (c == 126) || (c == 36));
169}
170
171/* Oh, how I despise having to do this... */
172static char *dcmakekey(char *lock)
173{
174 int i, len, offset;
175 char *buf, *key;
176 char save;
177
178 buf = smalloc(strlen(lock));
179 save = 5;
180 len = 0;
181 for(i = 0; lock[i]; i++)
182 {
183 buf[i] = lock[i] ^ save;
184 buf[i] = ((buf[i] & 0x0F) << 4) | ((buf[i] & 0xF0) >> 4);
185 save = lock[i];
186 if((i != 0) && reservedchar(buf[i]))
187 len += 10;
188 else
189 len++;
190 }
191 buf[0] ^= buf[i - 1];
192 if(reservedchar(buf[0]))
193 len += 10;
194 else
195 len++;
196 key = smalloc(len + 1);
197 offset = 0;
198 for(i = 0; lock[i] != 0; i++)
199 {
200 if(reservedchar(buf[i]))
201 offset += sprintf(key + offset, "/%%DCN%03i%%/", buf[i]);
202 else
203 key[offset++] = buf[i];
204 }
205 key[offset] = 0;
206 free(buf);
207 return(key);
208}
209
040118de 210static wchar_t *nmdc2path(char *nmdc, char *charset)
9a2d6cb8 211{
040118de 212 wchar_t *ret, *p;
9a2d6cb8 213
040118de
FT		 214 if((ret = icmbstowcs(nmdc, charset)) == NULL)
215 return(NULL);
216 for(p = ret; *p != L'\0'; p++) {
217 if(*p == L'\\')
218 *p = L'/';
9a2d6cb8 219 }
9a2d6cb8 220 return(ret);
221}
222
040118de
FT		 223static char *path2nmdc(wchar_t *path, char *charset)
224{
225 char *ret, *p;
226
227 if((ret = icwcstombs(path, charset)) == NULL)
228 return(NULL);
229 for(p = ret; *p; p++) {
230 if(*p == '/')
231 *p = '\\';
232 }
233 return(ret);
234}
235
236static wchar_t *adc2path(char *adc)
237{
238 return(icmbstowcs(adc, "UTF-8"));
239}
240
241static char *path2adc(wchar_t *path)
242{
243 return(icwcstombs(path, "UTF-8"));
244}
245
9a2d6cb8 246static int isdchash(struct hash *hash)
247{
248 if(wcscmp(hash->algo, L"TTH"))
249 return(0);
250 if(hash->len != 24)
251 return(0);
252 return(1);
253}
254
08b74f8c
FT		 255/*
256 * Uncomment when used!
257
258static int hubsupports(struct dchub *hub, char *cap)
259{
260 char **p;
261
262 if(hub->supports == NULL)
263 return(0);
264 for(p = hub->supports; *p != NULL; p++)
265 {
266 if(!strcasecmp(*p, cap))
267 return(1);
268 }
269 return(0);
270}
271*/
272
9a2d6cb8 273static int supports(struct dcpeer *peer, char *cap)
274{
275 char **p;
276
277 if(peer->supports == NULL)
278 return(0);
279 for(p = peer->supports; *p != NULL; p++)
280 {
281 if(!strcasecmp(*p, cap))
282 return(1);
283 }
284 return(0);
285}
286
d3372da9 287static void endcompress(struct dcpeer *peer)
288{
289 if(peer->compress == CPRS_ZLIB)
290 {
291 deflateEnd(peer->cprsdata);
292 free(peer->cprsdata);
293 }
294 peer->compress = CPRS_NONE;
295}
296
297static void initcompress(struct dcpeer *peer, int algo)
298{
299 int ret;
300
301 endcompress(peer);
302 peer->compress = algo;
303 if(algo == CPRS_ZLIB)
304 {
305 peer->cprsdata = smalloc(sizeof(z_stream));
306 memset(peer->cprsdata, 0, sizeof(z_stream));
307 if((ret = deflateInit(peer->cprsdata, 3)) != Z_OK)
308 {
309 flog(LOG_CRIT, "Aiya! zlib refuses to init (%i)!", ret);
310 abort();
311 }
312 }
313}
314
315static void unquote(wchar_t *in)
316{
317 wchar_t *p, *p2, nc;
318
319 for(p = in; *p != L'\0'; p++)
320 {
321 if(*p == L'&')
322 {
323 for(p2 = p + 1; (*p2 != L'\0') && (*p2 != L';') && (*p2 != L'&'); p2++);
324 if(*p2 == L'&')
325 continue;
326 if(*p2 == L'\0')
327 return;
328 *p2 = L'\0';
329 nc = L'\0';
330 if(!wcscmp(p + 1, L"amp"))
331 {
332 nc = L'&';
333 } else if(p[1] == L'#') {
334 nc = ucptowc(wcstol(p + 2, NULL, 10));
335 }
336 if(nc == L'\0')
337 {
338 *p2 = L';';
339 p = p2;
340 continue;
341 }
342 *p = nc;
343 memmove(p + 1, p2 + 1, (wcslen(p2 + 1) + 1) * sizeof(wchar_t));
344 }
345 }
346}
347
348static void freeexppeer(struct dcexppeer *ep)
349{
350 if(ep->next != NULL)
351 ep->next->prev = ep->prev;
352 if(ep->prev != NULL)
353 ep->prev->next = ep->next;
354 if(ep == expected)
355 expected = ep->next;
356 free(ep->nick);
357 putfnetnode(ep->fn);
358 if(ep->expire != NULL)
359 canceltimer(ep->expire);
360 free(ep);
361}
362
363static void exppeerexpire(int cancelled, struct dcexppeer *ep)
364{
365 ep->expire = NULL;
366 if(!cancelled)
367 freeexppeer(ep);
368}
369
370static struct dcexppeer *expectpeer(char *nick, struct fnetnode *fn)
371{
372 struct dcexppeer *ep;
373
374 ep = smalloc(sizeof(*ep));
375 ep->nick = sstrdup(nick);
376 getfnetnode(ep->fn = fn);
377 ep->expire = timercallback(ntime() + 300, (void (*)(int, void *))exppeerexpire, ep);
378 ep->next = expected;
379 ep->prev = NULL;
380 if(expected != NULL)
381 expected->prev = ep;
382 expected = ep;
383 return(ep);
384}
385
c256f071 386static struct qcommand *newqcmd(struct qcmdqueue *queue, char *string)
d3372da9 387{
388 struct qcommand *new;
389
d3372da9 390 new = smalloc(sizeof(*new));
391 new->string = sstrdup(string);
c256f071
FT		 392 new->next = NULL;
393 if(queue->l == NULL)
394 queue->f = new;
395 else
396 queue->l->next = new;
397 queue->l = new;
8cb2d75b 398 queue->size++;
d3372da9 399 return(new);
400}
401
c256f071 402static struct qcommand *ulqcmd(struct qcmdqueue *queue)
d3372da9 403{
404 struct qcommand *qcmd;
405
c256f071 406 if((qcmd = queue->f) == NULL)
d3372da9 407 return(NULL);
c256f071
FT		 408 if((queue->f = qcmd->next) == NULL)
409 queue->l = NULL;
8cb2d75b 410 queue->size--;
d3372da9 411 return(qcmd);
412}
413
414static void freeqcmd(struct qcommand *qcmd)
415{
416 free(qcmd->string);
417 free(qcmd);
418}
419
420static void hubrecvchat(struct socket *sk, struct fnetnode *fn, char *from, char *string)
421{
422 wchar_t *chat, *wfrom, *wpeer;
423 char *p, *end;
424 struct fnetpeer *peer;
1d85f24b 425 struct dchub *hub;
d3372da9 426
1d85f24b 427 hub = fn->data;
d3372da9 428 end = string + strlen(string);
429 while((p = strchr(string, 13)) != NULL)
430 memmove(p, p + 1, (end-- - p));
431 if(from != NULL)
432 {
433 if((strlen(string) > strlen(from) + 2) && (*string == '<') && !memcmp(string + 1, from, strlen(from)) && (*(string + strlen(from) + 1) == '>'))
434 string += strlen(from) + 2;
1d85f24b 435 if((wfrom = icmbstowcs(from, hub->charset)) == NULL)
d3372da9 436 return;
437 wpeer = swcsdup(wfrom);
438 } else {
439 wfrom = NULL;
440 wpeer = NULL;
441 if(*string == '<')
442 {
443 for(p = string + 1; *p; p++)
444 {
445 if((*p == ' ') || (*p == '>'))
446 break;
447 }
448 if(*p == '>')
449 {
450 *(p++) = 0;
451 if(*p == ' ')
452 p++;
1d85f24b 453 if((wpeer = icmbstowcs(string + 1, hub->charset)) == NULL)
d3372da9 454 return;
455 string = p;
456 }
457 }
458 if(wpeer == NULL)
459 wpeer = swcsdup(L"");
460 }
1d85f24b 461 if((chat = icmbstowcs(string, hub->charset)) == NULL)
d3372da9 462 {
463 if(wfrom != NULL)
464 free(wfrom);
465 free(wpeer);
466 return;
467 }
468 unquote(chat);
469 if(wfrom != NULL)
470 {
471 if((peer = fnetfindpeer(fn, wfrom)) == NULL) /* Assume public chat */
472 fnethandlechat(fn, 1, wfrom, wpeer, chat);
473 else
474 fnethandlechat(fn, 0, wfrom, wpeer, chat);
475 } else {
476 fnethandlechat(fn, 1, L"", wpeer, chat);
477 }
478 if(wfrom != NULL)
479 free(wfrom);
480 free(wpeer);
481 free(chat);
482}
483
1e9d82b1 484static void peertimeout(int cancelled, struct dcpeer *peer)
485{
486 peer->timeout = NULL;
487 if(cancelled)
488 return;
489 freedcpeer(peer);
490}
491
d3372da9 492static void sendadc(struct socket *sk, char *arg)
493{
494 char *buf;
495 size_t bufsize, bufdata;
496
497 buf = NULL;
498 bufsize = bufdata = 0;
499 addtobuf(buf, ' ');
500 for(; *arg; arg++)
501 {
502 if(*arg == ' ')
503 {
504 bufcat(buf, "\\s", 2);
505 } else if(*arg == '\n') {
506 bufcat(buf, "\\n", 2);
507 } else if(*arg == '\\') {
508 bufcat(buf, "\\\\", 2);
509 } else {
510 addtobuf(buf, *arg);
511 }
512 }
513 sockqueue(sk, buf, bufdata);
514 free(buf);
515}
516
dcf7a1a2
FT		 517#if defined(__GNUC__)
518static void __attribute__ ((format (printf, 2, 3))) sendadcf(struct socket *sk, char *arg, ...)
519#else
520static void sendadcf(struct socket *sk, char *arg, ...)
521#endif
d3372da9 522{
523 char *buf;
524 va_list args;
525
526 va_start(args, arg);
527 buf = vsprintf2(arg, args);
528 va_end(args);
529 if(buf == NULL)
530 return;
531 sendadc(sk, buf);
532 free(buf);
533}
534
535static char **parseadc(char *args)
536{
537 char **retbuf;
538 size_t retbufsize, retbufdata;
539 char *buf;
540 size_t bufsize, bufdata;
541 int state;
542
543 retbuf = NULL;
544 buf = NULL;
545 retbufsize = retbufdata = bufsize = bufdata = 0;
546 state = 0;
547 while(state != 3)
548 {
549 switch(state)
550 {
551 case 0:
552 if(*args == 0)
553 state = 3;
554 else if(*args != ' ')
555 state = 1;
556 break;
557 case 1:
558 if((*args == ' ') || (*args == 0))
559 {
560 addtobuf(buf, 0);
561 addtobuf(retbuf, buf);
562 buf = NULL;
563 bufsize = bufdata = 0;
564 if(*args == 0)
565 state = 3;
566 } else if(*args == '\\') {
567 state = 2;
568 } else {
569 addtobuf(buf, *args);
570 }
571 args++;
572 break;
573 case 2:
574 if(*args == 0)
575 {
576 if(buf != NULL)
577 free(buf);
578 addtobuf(retbuf, NULL);
579 freeparr(retbuf);
580 return(NULL);
f24d5cfb 581 } else if((*args == 's') || (*args == ' ')) {
d3372da9 582 addtobuf(buf, ' ');
583 } else if(*args == 'n') {
584 addtobuf(buf, '\n');
585 } else if(*args == '\\') {
586 addtobuf(buf, '\\');
587 }
a478552c 588 args++;
d3372da9 589 state = 1;
a478552c 590 break;
d3372da9 591 }
592 }
593 if(buf != NULL)
594 free(buf);
595 addtobuf(retbuf, NULL);
596 return(retbuf);
597}
598
599/* Macros useful in command handlers */
600#define skipspace(s) ({if(((s) = strchr((s), ' ')) == NULL) return; else (s)++;})
601#define qstr(sk, str) sockqueue(sk, str, strlen(str))
602#define qstrf(sk, strandargs...) \
603do { \
604 char *__buf__; \
605 if((__buf__ = sprintf2(strandargs)) != NULL) { \
606 sockqueue(sk, __buf__, strlen(__buf__)); \
607 free(__buf__); \
608 } \
609} while(0)
610
611static char *tr(char *str, char *trans)
612{
613 char *p;
614
615 for(; *trans; trans += 2)
616 {
617 for(p = strchr(str, trans[0]); p != NULL; p = strchr(p, trans[0]))
618 *p = trans[1];
619 }
620 return(str);
621}
622
9a2d6cb8 623static char *getadcid(struct dcpeer *peer)
624{
625 char *buf;
626 char *ret;
d57f938a 627 int isfilelist;
9a2d6cb8 628
2a157d1a 629 isfilelist = 0;
d57f938a 630 if(!wcscmp(peer->transfer->path, L"files.xml") || !wcscmp(peer->transfer->path, L"files.xml.bz2") || !wcscmp(peer->transfer->path, L"MyList.DcLst"))
631 isfilelist = 1;
632 if(!isfilelist && (peer->transfer->hash != NULL) && isdchash(peer->transfer->hash) && supports(peer, "tthf"))
9a2d6cb8 633 {
634 buf = base32encode(peer->transfer->hash->buf, 24);
635 ret = sprintf2("TTH/%.39s", buf);
636 free(buf);
637 } else {
040118de 638 ret = path2adc(peer->transfer->path);
9a2d6cb8 639 }
640 return(ret);
641}
642
643
d3372da9 644static int trresumecb(struct transfer *transfer, wchar_t *cmd, wchar_t *arg, struct dcpeer *peer)
645{
646 if(!wcscmp(cmd, L"resume"))
647 {
648 if(arg == NULL)
649 {
650 flog(LOG_WARNING, "filter returned no position for \"resume\" on transfer %i", transfer->id);
651 freedcpeer(peer);
652 } else {
349c52a9 653 transfer->curpos = wcstoll(arg, NULL, 10);
9a2d6cb8 654 peer->hascurpos = 1;
655 requestfile(peer);
d3372da9 656 }
d3372da9 657 return(1);
658 }
659 return(0);
660}
661
9a2d6cb8 662static void sendmynick(struct dcpeer *peer)
d3372da9 663{
1d85f24b 664 struct fnetnode *fn;
d3372da9 665
1d85f24b 666 fn = peer->fn;
667 if(fn == NULL)
668 qstrf(peer->sk, "$MyNick %s|", icswcstombs(confgetstr("cli", "defnick"), peer->charset, "DoldaConnectUser-IN"));
9a2d6cb8 669 else
1d85f24b 670 qstrf(peer->sk, "$MyNick %s|", icswcstombs(fn->mynick, peer->charset, "DoldaConnectUser-IN"));
9a2d6cb8 671}
672
673static void sendpeerlock(struct dcpeer *peer)
674{
1c4b02cd 675 if(peer->dcppemu)
676 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DCPLUSPLUS0.674ABCABC|");
677 else
678 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DOLDA%sABCABCABC|", VERSION);
9a2d6cb8 679}
680
681static void sendsupports(struct dcpeer *peer)
682{
4b544330 683 if(peer->dcppemu) {
1c4b02cd 684 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG |");
4b544330
FT		 685 } else {
686 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF");
687 if(!confgetint("dc", "hidedeflate"))
688 qstr(peer->sk, " GetZBlock ZLIG");
689 qstr(peer->sk, "|");
690 }
9a2d6cb8 691}
692
693static void requestfile(struct dcpeer *peer)
694{
695 char *buf;
696
697 if(peer->transfer->size == -1)
d3372da9 698 {
1d85f24b 699 /* Use DCCHARSET for $Get paths until further researched... */
040118de 700 if((buf = path2nmdc(peer->transfer->path, DCCHARSET)) == NULL)
d3372da9 701 {
9a2d6cb8 702 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 703 peer->close = 1;
d3372da9 704 return;
705 }
9a2d6cb8 706 /* The transfer will be restarted later from
707 * cmd_filelength when it detects that the sizes
708 * don't match. */
709 qstrf(peer->sk, "$Get %s$1|", buf);
040118de 710 free(buf);
9a2d6cb8 711 return;
d3372da9 712 }
9a2d6cb8 713 if((peer->transfer->hash == NULL) && !peer->notthl)
d3372da9 714 {
9a2d6cb8 715 if(supports(peer, "adcget") && supports(peer, "tthl"))
d3372da9 716 {
9a2d6cb8 717 qstr(peer->sk, "$ADCGET");
718 sendadc(peer->sk, "tthl");
719 if((buf = getadcid(peer)) == NULL)
d3372da9 720 {
9a2d6cb8 721 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 722 peer->close = 1;
d3372da9 723 return;
724 }
9a2d6cb8 725 sendadc(peer->sk, buf);
726 free(buf);
727 sendadc(peer->sk, "0");
728 sendadc(peer->sk, "-1");
729 qstr(peer->sk, "|");
df873cd0 730 peer->fetchingtthl = 1;
9a2d6cb8 731 return;
732 }
733 }
734 if(!peer->hascurpos)
735 {
736 if(forkfilter(peer->transfer))
737 {
738 flog(LOG_WARNING, "could not fork filter for transfer %i: %s", peer->transfer->id, strerror(errno));
2bf4942d 739 peer->close = 1;
9a2d6cb8 740 return;
d3372da9 741 }
9a2d6cb8 742 return;
743 }
744 if(supports(peer, "adcget"))
745 {
746 qstr(peer->sk, "$ADCGET");
747 sendadc(peer->sk, "file");
748 if((buf = getadcid(peer)) == NULL)
749 {
750 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 751 peer->close = 1;
9a2d6cb8 752 return;
753 }
754 sendadc(peer->sk, buf);
755 free(buf);
dcf7a1a2
FT		 756 sendadcf(peer->sk, "%ji", (intmax_t)peer->transfer->curpos);
757 sendadcf(peer->sk, "%ji", (intmax_t)(peer->transfer->size - peer->transfer->curpos));
9a2d6cb8 758 qstr(peer->sk, "|");
759 } else if(supports(peer, "xmlbzlist")) {
040118de 760 if((buf = path2nmdc(peer->transfer->path, "UTF-8")) == NULL)
9a2d6cb8 761 {
762 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 763 peer->close = 1;
9a2d6cb8 764 return;
765 }
dcf7a1a2 766 qstrf(peer->sk, "$UGetBlock %ji %ji %s|", (intmax_t)peer->transfer->curpos, (intmax_t)(peer->transfer->size - peer->transfer->curpos), buf);
040118de 767 free(buf);
d3372da9 768 } else {
1d85f24b 769 /* Use DCCHARSET for $Get paths until further researched... */
040118de 770 if((buf = path2nmdc(peer->transfer->path, DCCHARSET)) == NULL)
d3372da9 771 {
9a2d6cb8 772 transferseterror(peer->transfer, TRNSE_NOTFOUND);
2bf4942d 773 peer->close = 1;
9a2d6cb8 774 return;
d3372da9 775 }
dcf7a1a2 776 qstrf(peer->sk, "$Get %s$%ji|", buf, (intmax_t)peer->transfer->curpos + 1);
040118de 777 free(buf);
d3372da9 778 }
779}
780
781static void sendmyinfo(struct socket *sk, struct fnetnode *fn)
782{
783 struct dchub *hub;
784 char *buf;
785 struct fnetnode *cfn;
69757b8c 786 int hn1, hn2, hn3;
d3372da9 787
788 hub = fn->data;
789 qstrf(sk, "$MyINFO $ALL %s ", hub->nativenick);
1d85f24b 790 buf = tr(icswcstombs(confgetstr("dc", "desc"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 791 qstrf(sk, "%s", buf);
69757b8c 792 hn1 = hn2 = hn3 = 0;
d3372da9 793 for(cfn = fnetnodes; cfn != NULL; cfn = cfn->next)
794 {
795 if((cfn->state == FNN_EST) || (cfn->state == FNN_HS))
69757b8c 796 {
797 if(cfn->regstatus == FNNS_OP)
798 hn3++;
799 else if(cfn->regstatus == FNNS_REG)
800 hn2++;
801 else
802 hn1++;
803 }
d3372da9 804 }
69757b8c 805 qstrf(sk, "<%s V:%s,M:%c,H:%i/%i/%i,S:%i>",
1c4b02cd 806 (hub->dcppemu)?"++":"Dolda",
807 (hub->dcppemu)?"0.674":VERSION,
d3372da9 808 (tcpsock == NULL)?'P':'A',
69757b8c 809 hn1, hn2, hn3,
d3372da9 810 confgetint("transfer", "slots")
811 );
812 qstrf(sk, "$ $");
1d85f24b 813 buf = tr(icswcstombs(confgetstr("dc", "speedstring"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 814 qstrf(sk, "%s\x01$", buf);
1d85f24b 815 buf = tr(icswcstombs(confgetstr("dc", "email"), hub->charset, "Charset_conv_failure"), "$_|_");
d3372da9 816 qstrf(sk, "%s$", buf);
817 qstrf(sk, "%llu$|", sharesize);
818}
819
820static void hubhandleaction(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
821{
822 struct dchub *hub;
823
824 hub = fn->data;
825 if(!strcmp(cmd, "$Lock"))
826 {
827 qstrf(sk, "$ValidateNick %s|", hub->nativenick);
828 } else if(!strcmp(cmd, "$Hello")) {
829 if(fn->state == FNN_HS)
830 {
831 qstrf(sk, "$Version 1,0091|");
832 qstrf(sk, "$GetNickList|");
833 sendmyinfo(sk, fn);
834 fnetsetstate(fn, FNN_EST);
835 } else {
836 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
837 }
838 }
839}
840
841static void cmd_lock(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
842{
843 struct dchub *hub;
844 char *key;
845 char *p;
846
847 hub = fn->data;
848 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
849 hub->extended = 1;
850 if((p = strchr(args, ' ')) != NULL)
851 *(p++) = 0;
852 if(hub->extended)
853 {
4b544330 854 if(hub->dcppemu) {
1c4b02cd 855 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock |");
4b544330
FT		 856 } else {
857 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch");
858 if(!confgetint("dc", "hidedeflate"))
859 qstr(sk, " GetZBlock");
860 qstr(sk, "|");
861 }
d3372da9 862 }
863 key = dcmakekey(args);
864 qstrf(sk, "$Key %s|", key);
865 free(key);
866 hubhandleaction(sk, fn, cmd, args);
867}
868
869static void cmd_hubname(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
870{
871 wchar_t *buf;
872 struct dchub *hub;
873
874 hub = fn->data;
7bb3e8c1 875 if(hub->nativename != NULL)
d3372da9 876 free(hub->nativename);
877 hub->nativename = sstrdup(args);
1d85f24b 878 buf = icmbstowcs(args, hub->charset);
d3372da9 879 fnetsetname(fn, (buf == NULL)?L"Hubname conv error":buf);
880 if(buf != NULL)
881 free(buf);
882 hubhandleaction(sk, fn, cmd, args);
883}
884
885static void cmd_hello(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
886{
887 wchar_t *nick;
888 struct dchub *hub;
889
890 hub = fn->data;
1d85f24b 891 if((nick = icmbstowcs(args, hub->charset)) == NULL)
d3372da9 892 return;
893 if(strcmp(args, hub->nativenick) && (fnetfindpeer(fn, nick) == NULL))
894 fnetaddpeer(fn, nick, nick);
895 free(nick);
896 hubhandleaction(sk, fn, cmd, args);
897}
898
899static void cmd_quit(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
900{
901 wchar_t *nick;
902 struct fnetpeer *peer;
903 struct dchub *hub;
904
905 hub = fn->data;
1d85f24b 906 if((nick = icmbstowcs(args, hub->charset)) == NULL)
d3372da9 907 return;
908 if((peer = fnetfindpeer(fn, nick)) != NULL)
909 fnetdelpeer(peer);
910 free(nick);
911 hubhandleaction(sk, fn, cmd, args);
912}
913
914static void cmd_nicklist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
915{
916 struct dchub *hub;
917 char *p;
918 wchar_t *buf;
0e227c1d 919 struct fnetpeer *peer;
d3372da9 920
921 hub = fn->data;
0e227c1d 922 for(peer = btreeiter(fn->peers); peer != NULL; peer = btreeiter(NULL))
d3372da9 923 peer->flags.b.delete = 1;
924 while((p = strstr(args, "$$")) != NULL)
925 {
926 *p = 0;
1d85f24b 927 if((buf = icmbstowcs(args, hub->charset)) != NULL)
d3372da9 928 {
929 if((peer = fnetfindpeer(fn, buf)) == NULL)
930 peer = fnetaddpeer(fn, buf, buf);
931 else
932 peer->flags.b.delete = 0;
933 free(buf);
934 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
935 }
936 args = p + 2;
937 }
0e227c1d 938 fnetpeerdm(fn);
d3372da9 939 hubhandleaction(sk, fn, cmd, args);
940}
941
942static void cmd_oplist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
943{
944 struct dchub *hub;
945 char *p;
946 wchar_t *buf;
947 struct fnetpeer *peer;
948
949 hub = fn->data;
0e227c1d 950 for(peer = btreeiter(fn->peers); peer != NULL; peer = btreeiter(NULL))
d3372da9 951 peer->flags.b.op = 0;
952 while((p = strstr(args, "$$")) != NULL)
953 {
954 *p = 0;
1d85f24b 955 if((buf = icmbstowcs(args, hub->charset)) != NULL)
d3372da9 956 {
957 if((peer = fnetfindpeer(fn, buf)) != NULL)
958 peer->flags.b.op = 1;
959 free(buf);
960 }
961 args = p + 2;
962 }
963 hubhandleaction(sk, fn, cmd, args);
964}
965
966static void cmd_myinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
967{
968 char *p, *p2;
969 wchar_t *buf, *wp, *wp2;
970 wchar_t abuf[10];
971 struct fnetpeer *peer;
972 struct dchub *hub;
973
974 hub = fn->data;
975 p = args;
976 if(strncmp(p, "$ALL ", 5))
977 return;
978 p += 5;
979 if((p2 = strchr(p, ' ')) == NULL)
980 return;
981 *p2 = 0;
1d85f24b 982 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 983 return;
984 if((peer = fnetfindpeer(fn, buf)) == NULL)
985 peer = fnetaddpeer(fn, buf, buf);
986 free(buf);
987 p = p2 + 1;
988 if((p2 = strstr(p, "$ $")) == NULL)
989 return;
990 *p2 = 0;
1d85f24b 991 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 992 return;
316e9a13 993 if((wcslen(buf) > 0) && (buf[wcslen(buf) - 1] == L'>') && ((wp = wcsrchr(buf, L'<')) != NULL))
d3372da9 994 {
995 buf[wcslen(buf) - 1] = L'\0';
996 *(wp++) = L'\0';
997 if((wp2 = wcschr(wp, L' ')) != NULL)
998 {
999 *(wp2++) = L'\0';
1000 fnetpeersetstr(peer, L"dc-client", wp);
1001 wp = wp2;
1002 do
1003 {
1004 if((wp2 = wcschr(wp, L',')) != NULL)
1005 *(wp2++) = L'\0';
1006 if(wp[1] != L':')
1007 continue;
1008 swprintf(abuf, 10, L"dc-tag-%lc", wp[0]);
1009 fnetpeersetstr(peer, abuf, wp + 2);
1010 wp = wp2;
1011 } while(wp2 != NULL);
1012 }
1013 }
1014 fnetpeersetstr(peer, L"descr", buf);
1015 free(buf);
1016 p = p2 + 3;
1017 if((p2 = strchr(p, '$')) == NULL)
1018 return;
1019 *(p2 - 1) = 0;
1d85f24b 1020 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 1021 return;
1022 fnetpeersetstr(peer, L"dc-speed", buf);
1023 free(buf);
1024 p = p2 + 1;
1025 if((p2 = strchr(p, '$')) == NULL)
1026 return;
1027 *p2 = 0;
1d85f24b 1028 if((buf = icmbstowcs(p, hub->charset)) == NULL)
d3372da9 1029 return;
1030 fnetpeersetstr(peer, L"email", buf);
1031 free(buf);
1032 p = p2 + 1;
1033 if(strlen(p) < 1)
1034 return;
1035 fnetpeersetlnum(peer, L"share", strtoll(p, NULL, 10));
1036 hubhandleaction(sk, fn, cmd, args);
1037}
1038
1039/* I do not implement the fully in that I do not disconnect from the
1040 * old hub. I do this since I believe that if the hub owner really
1041 * wants to get rid of us, then it is his responsibility to disconnect
1042 * us. */
1043static void cmd_forcemove(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1044{
1045 struct dchub *hub;
1046 struct fnetnode *newfn;
1047 int freeargs;
1048
1049 hub = fn->data;
1050 if(strchr(args, ':') == NULL)
1051 {
1052 args = strcpy(smalloc(strlen(args) + 5), args);
1053 strcat(args, ":411");
1054 freeargs = 1;
1055 } else {
1056 freeargs = 0;
1057 }
a3a4a3a7 1058 if((newfn = fnetinitconnect(L"dc", fn->owner, args, NULL)) != NULL)
d3372da9 1059 {
1060 linkfnetnode(newfn);
1061 putfnetnode(newfn);
1062 }
1063 hubhandleaction(sk, fn, cmd, args);
1064 if(freeargs)
1065 free(args);
1066}
1067
1d85f24b 1068static char *getdcpath(struct sharecache *node, size_t *retlen, char *charset)
d3372da9 1069{
1070 char *buf, *buf2;
1071 size_t len, len2;
1072
1073 if(node->parent == NULL)
1074 return(NULL);
1075 if(node->parent == shareroot)
1076 {
1d85f24b 1077 if((buf = icwcstombs(node->name, charset)) == NULL)
d3372da9 1078 return(NULL);
1079 if(retlen != NULL)
1080 *retlen = strlen(buf);
1081 return(buf);
1082 } else {
1d85f24b 1083 if((buf2 = icwcstombs(node->name, charset)) == NULL)
d3372da9 1084 return(NULL);
1d85f24b 1085 if((buf = getdcpath(node->parent, &len, charset)) == NULL)
d3372da9 1086 {
1087 free(buf2);
1088 return(NULL);
1089 }
1090 len2 = strlen(buf2);
1091 buf = srealloc(buf, len + 1 + len2 + 1);
1092 buf[len++] = '\\';
1093 strcpy(buf + len, buf2);
1094 buf[len + len2] = 0;
1095 free(buf2);
1096 if(retlen != NULL)
1097 *retlen = len + len2;
1098 return(buf);
1099 }
1100}
1101
1102/*
1103 * This is the main share searching function for Direct Connect
1104 * peers. Feel free to optimize it if you feel the need for it. I
1105 * haven't ever seen it take any noticable CPU time anyway, so I
1106 * haven't felt that need.
1107 *
1108 * It may feel dubious to just return the directory when all terms are
1109 * satisfied rather than all the files in it, but it really benefits
1110 * everyone: Less cycles used for us, less UDP squelching for active
1111 * searchers, and less bandwidth waste for hubs when serving passive
1112 * searchers.
1113 */
1114static void cmd_search(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1115{
1116 int i, done;
1117 struct dchub *hub;
1118 char *p, *p2;
1119 char *prefix, *infix, *postfix, *buf, *buf2;
1120 struct socket *dsk;
1121 struct sockaddr_in addr;
1122 struct sharecache *node;
1123 int minsize, maxsize;
c7185019 1124 int dotth;
1125 size_t buflen;
d3372da9 1126 int termnum, satisfied, skipcheck;
1127 int level, tersat[32];
8bdbfebe 1128 wchar_t *terms[32], *lname;
d3372da9 1129 char hashtth[24];
1130
1131 hub = fn->data;
1132 if((p = strchr(args, ' ')) == NULL)
1133 return;
1134 *(p++) = 0;
1135
1136 memset(terms, 0, sizeof(terms));
1137 prefix = infix = postfix = NULL;
1138 dsk = NULL;
1139 dotth = 0;
1140
1141 if(!strncmp(args, "Hub:", 4))
1142 {
1143 if(!strcmp(cmd, "$MultiSearch"))
1144 goto out;
1145 if(!strcmp(args + 4, hub->nativenick))
1146 goto out;
1147 prefix = sprintf2("$SR %s ", hub->nativenick);
1148 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
d1ef0200 1149 postfix = sprintf2(" (%s)\005%s|", formatsockpeer(hub->sk), args + 4);
d3372da9 1150 dsk = sk;
1151 getsock(dsk);
1152 } else {
1153 if((p2 = strchr(args, ':')) == NULL)
1154 goto out;
1155 *(p2++) = 0;
1156 addr.sin_family = AF_INET;
1157 if(!inet_aton(args, &addr.sin_addr))
1158 goto out;
1159 addr.sin_port = htons(atoi(p2));
1160 prefix = sprintf2("$SR %s ", hub->nativenick);
1161 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
d1ef0200
FT		 1162 postfix = sprintf2(" (%s)|", formatsockpeer(hub->sk));
1163 dsk = netdgramconn(udpsock, (struct sockaddr *)&addr, sizeof(addr));
d3372da9 1164 }
1165
1166 minsize = maxsize = -1;
1167 if(*p == 0)
1168 goto out;
1169 if(*(p++) == 'T')
1170 minsize = 0;
1171 if(*(p++) != '?')
1172 goto out;
1173 if(*p == 0)
1174 goto out;
9d8cf743 1175 if((*(p++) == 'T') && (minsize == 0))
d3372da9 1176 {
1177 maxsize = 0;
1178 minsize = -1;
1179 }
1180 if(*(p++) != '?')
1181 goto out;
1182 if((p2 = strchr(p, '?')) == NULL)
1183 goto out;
1184 *(p2++) = 0;
1185 if(minsize == 0)
1186 minsize = atoi(p);
1187 if(maxsize == 0)
1188 maxsize = atoi(p);
1189 p = p2 + 1;
1190 if(*(p++) != '?')
1191 goto out;
1192 termnum = 0;
1193 p2 = p;
1194 done = 0;
1195 while(!done)
1196 {
1197 if((*p2 == 0) || (*p2 == '$'))
1198 {
1199 if(*p2 == 0)
1200 done = 1;
1201 else
1202 *p2 = 0;
1203 if(*p)
1204 {
1205 if(!dotth && !strncmp(p, "TTH:", 4))
1206 {
1207 dotth = 1;
2dd01e6e 1208 if(((buf = base32decode(p + 4, &buflen)) == NULL) || (buflen != 24))
1209 {
1210 free(buf);
d3372da9 1211 goto out;
2dd01e6e 1212 }
d3372da9 1213 memcpy(hashtth, buf, 24);
1214 free(buf);
1215 } else {
8bdbfebe
FT		 1216 if((terms[termnum] = icmbstowcs(p, hub->charset)) != NULL) {
1217 wcslower(terms[termnum]);
d3372da9 1218 termnum++;
8bdbfebe 1219 }
d3372da9 1220 }
1221 }
1222 p = p2 + 1;
1223 if(termnum == 32)
1224 break;
1225 }
1226 p2++;
1227 }
1228
1229 node = shareroot->child;
1230 level = 0;
1231 for(i = 0; i < termnum; i++)
1232 tersat[i] = -1;
1233 satisfied = 0;
1234 while(1)
1235 {
1236 skipcheck = 0;
1237 if(node->f.b.type == FILE_REG)
1238 {
1239 if((minsize >= 0) && (node->size < minsize))
1240 skipcheck = 1;
1241 if((maxsize >= 0) && (node->size > maxsize))
1242 skipcheck = 1;
1243 }
1244 if(!skipcheck && dotth)
1245 {
1246 if((node->f.b.type != FILE_REG) || (node->f.b.hastth && memcmp(hashtth, node->hashtth, 24)))
1247 skipcheck = 1;
1248 }
1249 if(!skipcheck)
1250 {
8bdbfebe 1251 lname = wcslower(swcsdup(node->name));
d3372da9 1252 for(i = 0; i < termnum; i++)
1253 {
1254 if(tersat[i] >= 0)
1255 continue;
8bdbfebe 1256 if(wcsstr(lname, terms[i]))
d3372da9 1257 {
1258 tersat[i] = level;
1259 satisfied++;
1260 } else if(node->child == NULL) {
1261 break;
1262 }
1263 }
8bdbfebe 1264 free(lname);
d3372da9 1265 }
1266 if(!skipcheck && (satisfied == termnum))
1267 {
1d85f24b 1268 /* Use DCCHARSET in $Get paths until further researched... */
1269 if((buf = getdcpath(node, NULL, DCCHARSET)) != NULL)
d3372da9 1270 {
1271 if(node->f.b.hastth)
1272 {
1273 buf2 = base32encode(node->hashtth, 24);
dcf7a1a2 1274 qstrf(dsk, "%s%s\005%ji%sTTH:%.39s%s", prefix, buf, (intmax_t)node->size, infix, buf2, postfix);
d3372da9 1275 free(buf2);
1276 } else {
dcf7a1a2 1277 qstrf(dsk, "%s%s\005%ji%s%s%s", prefix, buf, (intmax_t)node->size, infix, hub->nativename, postfix);
d3372da9 1278 }
1279 free(buf);
1280 }
1281 }
1282 if((!skipcheck && (satisfied == termnum)) || (node->child == NULL))
1283 {
1284 while(node->next == NULL)
1285 {
1286 if((node = node->parent) == shareroot)
1287 break;
1288 level--;
1289 }
1290 if(node == shareroot)
1291 break;
1292 for(i = 0; i < termnum; i++)
1293 {
1294 if(tersat[i] >= level)
1295 {
1296 tersat[i] = -1;
1297 satisfied--;
1298 }
1299 }
1300 node = node->next;
1301 } else {
1302 node = node->child;
1303 level++;
1304 }
1305 }
1306
1307 hubhandleaction(sk, fn, cmd, args);
1308
1309 out:
1310 if(dsk != NULL)
1311 putsock(dsk);
1312 if(prefix != NULL)
1313 free(prefix);
1314 if(infix != NULL)
1315 free(infix);
1316 if(postfix != NULL)
1317 free(postfix);
1318 for(i = 0; (i < 32) && (terms[i] != NULL); i++)
1319 free(terms[i]);
1320}
1321
1322static void cmd_connecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1323{
1324 char *p;
1325 struct dchub *hub;
d3372da9 1326 struct sockaddr_in addr;
1327
1328 hub = fn->data;
1329 if((p = strchr(args, ' ')) == NULL)
1330 return;
1331 *(p++) = 0;
1332 if(strcmp(args, hub->nativenick))
1333 return;
1334 addr.sin_family = AF_INET;
1335 args = p;
1336 if((p = strchr(args, ':')) == NULL)
1337 return;
1338 *(p++) = 0;
1339 addr.sin_port = htons(atoi(p));
1340 if(!inet_aton(args, &addr.sin_addr))
1341 return;
8d7a1e88 1342 putsock(netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn));
d3372da9 1343 getfnetnode(fn);
1344 hubhandleaction(sk, fn, cmd, args);
1345}
1346
1347static void sendctm(struct socket *sk, char *nick)
1348{
1349 struct sockaddr *addr;
1350 socklen_t addrlen;
1351
1352 if(tcpsock == NULL)
1353 return;
f96d0914 1354 if(lstgetremotename2(tcpsock, sk, &addr, &addrlen) < 0)
d3372da9 1355 return;
1356 if(addr->sa_family == AF_INET)
1357 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1358 else
1359 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1360 free(addr);
1361}
1362
1363static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1364{
1365 struct dchub *hub;
1366 char *p;
1367
1368 hub = fn->data;
1369 if((p = strchr(args, ' ')) == NULL)
1370 return;
1371 *(p++) = 0;
1372 if(strcmp(p, hub->nativenick))
1373 return;
1374 sendctm(sk, args);
1375 expectpeer(args, fn);
1376 hubhandleaction(sk, fn, cmd, args);
1377}
1378
1379static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1380{
1381 struct dchub *hub;
1382 struct fnetnode *node;
1383 int numhubs;
1384
1385 hub = fn->data;
1386 numhubs = 0;
1387 for(node = fnetnodes; node != NULL; node = node->next)
1388 {
1389 if(node->state == FNN_EST)
1390 numhubs++;
1391 }
1392 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1393 hubhandleaction(sk, fn, cmd, args);
1394}
1395
1396static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1397{
1398 struct dchub *hub;
1399 char *p, *p2;
1400
1401 hub = fn->data;
1402 p = args;
1403 if((p2 = strchr(p, ' ')) == NULL)
1404 return;
1405 *(p2++) = 0;
1406 p = p2;
1407 if((p2 = strchr(p, ' ')) == NULL)
1408 return;
1409 *(p2++) = 0;
1410 if(strcmp(p, "From:"))
1411 return;
1412 p = p2;
1413 if((p2 = strstr(p, " $")) == NULL)
1414 return;
1415 *p2 = 0;
1416 p2 += 2;
ffa81d5f 1417 hubrecvchat(hub->sk, fn, p, p2);
d3372da9 1418 hubhandleaction(sk, fn, cmd, args);
1419}
1420
1421static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1422{
1423 struct dchub *hub;
d86b7a9f 1424 char *p, *p2, *buf;
d3372da9 1425 char *nick, *filename, *hubname;
dcf7a1a2
FT		 1426 off_t size;
1427 int slots;
d86b7a9f 1428 size_t buflen;
d3372da9 1429 struct srchres *sr;
1430 wchar_t *wnick, *wfile;
1431
1432 hub = fn->data;
1433 nick = p = args;
1434 if((p2 = strchr(p, ' ')) == NULL)
1435 return;
1436 *p2 = 0;
1437 p = p2 + 1;
1438 filename = p;
1439 if((p2 = strchr(p, 5)) == NULL)
1440 return;
1441 *p2 = 0;
1442 p = p2 + 1;
1443 if((p2 = strchr(p, ' ')) == NULL)
1444 return;
1445 *p2 = 0;
dcf7a1a2 1446 size = strtoll(p, NULL, 10);
d3372da9 1447 p = p2 + 1;
1448 if((p2 = strchr(p, '/')) == NULL)
1449 return;
1450 *p2 = 0;
1451 slots = atoi(p);
1452 p = p2 + 1;
1453 if((p2 = strchr(p, 5)) == NULL)
1454 return;
1455 p = p2 + 1;
1456 hubname = p;
1457 if((p2 = strstr(p, " (")) == NULL)
1458 return;
1459 *p2 = 0;
1d85f24b 1460 if((wnick = icmbstowcs(nick, hub->charset)) == NULL)
d3372da9 1461 return;
1d85f24b 1462 /* Use DCCHARSET in $Get paths until further researched... */
040118de 1463 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 1464 {
1465 free(wnick);
1466 return;
1467 }
1468 sr = newsrchres(&dcnet, wfile, wnick);
1469 if(sr->peernick != NULL)
1470 free(sr->peernick);
1471 sr->peernick = swcsdup(wnick);
1472 sr->size = size;
1473 sr->slots = slots;
1474 free(wfile);
1475 free(wnick);
d86b7a9f 1476 if(!strncmp(hubname, "TTH:", 4))
1477 {
1478 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1479 {
1480 if(buflen == 24)
1481 sr->hash = newhash(L"TTH", 24, buf);
1482 free(buf);
1483 }
1484 }
d3372da9 1485 getfnetnode(sr->fn = fn);
1486 submitsrchres(sr);
1487 freesrchres(sr);
1488 hubhandleaction(sk, fn, cmd, args);
1489}
1490
1491static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1492{
1493 /* Do nothing for now. */
1494}
1495
48509089 1496static void cmd_getpass(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1497{
1498 struct dchub *hub;
1c4b02cd 1499 wchar_t *pw;
48509089 1500 char *mbspw;
1501
1502 hub = fn->data;
1c4b02cd 1503 pw = wpfind(fn->args, L"password");
1d85f24b 1504 if((pw == NULL) || ((mbspw = icwcstombs(pw, hub->charset)) == NULL))
48509089 1505 {
1506 killfnetnode(fn);
1507 return;
1508 }
1509 qstrf(sk, "$MyPass %s|", mbspw);
1510 free(mbspw);
fcd0627b 1511 fn->regstatus = FNNS_REG;
48509089 1512 hubhandleaction(sk, fn, cmd, args);
1513}
1514
c9b3ad74 1515static void cmd_logedin(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1516{
1517 struct dchub *hub;
1518
1519 hub = fn->data;
fcd0627b 1520 fn->regstatus = FNNS_OP;
c9b3ad74 1521 hubhandleaction(sk, fn, cmd, args);
1522}
1523
08b74f8c
FT		 1524static void cmd_hubsupports(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1525{
1526 struct dchub *hub;
1527 int i;
1528 char *p, *p2;
1529 char **arr;
1530 size_t arrsize, arrdata;
1531
1532 hub = fn->data;
1533 if(hub->supports != NULL)
1534 {
1535 for(i = 0; hub->supports[i] != NULL; i++)
1536 free(hub->supports[i]);
1537 free(hub->supports);
1538 }
1539 arr = NULL;
1540 arrsize = arrdata = 0;
1541 p = args;
1542 do
1543 {
1544 if((p2 = strchr(p, ' ')) != NULL)
1545 *(p2++) = 0;
1546 if(*p == 0)
1547 continue;
1548 addtobuf(arr, sstrdup(p));
1549 } while((p = p2) != NULL);
1550 addtobuf(arr, NULL);
1551 hub->supports = arr;
1552}
1553
d3372da9 1554static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1555{
9a2d6cb8 1556 struct dcexppeer *expect;
1c4b02cd 1557 struct dchub *hub;
9a2d6cb8 1558
d3372da9 1559 if(peer->nativename != NULL)
1560 free(peer->nativename);
1561 peer->nativename = sstrdup(args);
1562 if(peer->wcsname != NULL)
1563 free(peer->wcsname);
1d85f24b 1564 if((peer->wcsname = icmbstowcs(peer->nativename, peer->charset)) == NULL)
d3372da9 1565 {
2bf4942d 1566 peer->close = 1;
d3372da9 1567 return;
1568 }
9a2d6cb8 1569 if(peer->accepted)
1570 {
1571 for(expect = expected; expect != NULL; expect = expect->next)
1572 {
1573 if(!strcmp(expect->nick, args))
1574 break;
1575 }
1576 if(expect == NULL)
1577 {
1578 peer->fn = NULL;
1579 } else {
1c4b02cd 1580 hub = expect->fn->data;
9a2d6cb8 1581 peer->fn = expect->fn;
1582 getfnetnode(peer->fn);
1c4b02cd 1583 peer->dcppemu = hub->dcppemu;
9a2d6cb8 1584 freeexppeer(expect);
1585 }
1586 }
d3372da9 1587}
1588
c3d01fa9
FT		 1589static void peerattach(struct dcpeer *peer, struct transfer *transfer)
1590{
1591 peer->transfer = transfer;
1592 CBREG(peer->transfer, trans_filterout, (int (*)(struct transfer *, wchar_t *, wchar_t *, void *))trresumecb, NULL, peer);
1593 CBREG(peer->transfer, trans_destroy, (int (*)(struct transfer *, void *))trdestroycb, NULL, peer);
1594}
1595
d3372da9 1596static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1597{
1598 char *p;
9a2d6cb8 1599 int mydir;
1600 struct transfer *transfer;
d3372da9 1601
1602 if((p = strchr(args, ' ')) == NULL)
1603 return;
1604 *p = 0;
1605 if(!strcmp(args, "Upload"))
9a2d6cb8 1606 mydir = TRNSD_DOWN;
d3372da9 1607 if(!strcmp(args, "Download"))
9a2d6cb8 1608 mydir = TRNSD_UP;
1609 if(peer->accepted)
1610 {
1611 if((peer->transfer == NULL) || (mydir != peer->direction))
1612 {
2bf4942d 1613 peer->close = 1;
9a2d6cb8 1614 return;
1615 }
1b14d3d8 1616 if(peer->direction == TRNSD_DOWN)
1617 requestfile(peer);
9a2d6cb8 1618 } else {
1619 if(peer->wcsname == NULL)
1620 {
2bf4942d 1621 peer->close = 1;
9a2d6cb8 1622 return;
1623 }
1624 peer->direction = mydir;
1625 if(peer->direction == TRNSD_UP)
1626 {
01663fd9 1627 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1628 {
2bf4942d 1629 peer->close = 1;
01663fd9 1630 return;
1631 }
1ff9e8ea 1632 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1633 } else {
1634 if((transfer = finddownload(peer->wcsname)) == NULL)
1635 {
2bf4942d 1636 peer->close = 1;
9a2d6cb8 1637 return;
1638 }
1ff9e8ea 1639 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1640 transfersetstate(transfer, TRNS_HS);
1641 }
1642 transfersetnick(transfer, peer->wcsname);
c3d01fa9 1643 peerattach(peer, transfer);
9a2d6cb8 1644 if(peer->extended)
1645 sendsupports(peer);
1646 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1647 if(peer->key != NULL)
1648 qstrf(sk, "$Key %s|", peer->key);
1649 if(peer->direction == TRNSD_DOWN)
1650 requestfile(peer);
1651 }
d3372da9 1652}
1653
1654static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1655{
9a2d6cb8 1656 char *p, *key;
1657 struct transfer *transfer;
d3372da9 1658
1659 if((p = strchr(args, ' ')) == NULL)
1660 return;
1661 *p = 0;
1662 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1663 peer->extended = 1;
9a2d6cb8 1664 key = dcmakekey(args);
1665 if(peer->accepted)
1666 {
1667 if(peer->wcsname == NULL)
1668 {
2bf4942d 1669 peer->close = 1;
9a2d6cb8 1670 return;
1671 }
1672 sendmynick(peer);
1673 sendpeerlock(peer);
1674 if(peer->extended)
1675 sendsupports(peer);
1676 if((transfer = finddownload(peer->wcsname)) == NULL)
1677 {
01663fd9 1678 if(confgetint("transfer", "ulquota") && hasupload(&dcnet, peer->wcsname))
1679 {
2bf4942d 1680 peer->close = 1;
01663fd9 1681 return;
1682 }
9a2d6cb8 1683 peer->direction = TRNSD_UP;
1ff9e8ea 1684 transfer = newupload(peer->fn, &dcnet, peer->wcsname, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1685 } else {
1686 peer->direction = TRNSD_DOWN;
1ff9e8ea 1687 transferattach(transfer, (peer->trpipe = mktrpipe(peer))->back);
9a2d6cb8 1688 transfersetstate(transfer, TRNS_HS);
1689 }
1690 transfersetnick(transfer, peer->wcsname);
c3d01fa9 1691 peerattach(peer, transfer);
9a2d6cb8 1692 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1693 qstrf(sk, "$Key %s|", key);
62da2712 1694 free(key);
9a2d6cb8 1695 } else {
1696 if(peer->key != NULL)
1697 free(peer->key);
1698 peer->key = key;
1699 }
d3372da9 1700}
1701
1702static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1703{
9a2d6cb8 1704 /* NOP */
1705}
1706
1707static void startdl(struct dcpeer *peer)
1708{
1e9d82b1 1709 if(peer->timeout != NULL)
1710 canceltimer(peer->timeout);
9a2d6cb8 1711 peer->state = PEER_TRNS;
1712 transferstartdl(peer->transfer, peer->sk);
cab0b442 1713 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1714 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
9a2d6cb8 1715}
1716
1717static void startul(struct dcpeer *peer)
1718{
1e9d82b1 1719 if(peer->timeout != NULL)
1720 canceltimer(peer->timeout);
9a2d6cb8 1721 peer->state = PEER_TRNS;
1722 transferstartul(peer->transfer, peer->sk);
cab0b442 1723 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
bd5d862e 1724 transwrite(peer->sk, peer);
d3372da9 1725}
1726
1727static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1728{
dcf7a1a2 1729 off_t size;
1fc81821 1730 struct transfer *transfer;
d3372da9 1731
1732 if(peer->transfer == NULL)
1733 {
2bf4942d 1734 peer->close = 1;
d3372da9 1735 return;
1736 }
dcf7a1a2 1737 size = strtoll(args, NULL, 10);
9a2d6cb8 1738 if(peer->transfer->size != size)
d3372da9 1739 {
d3372da9 1740 transfersetsize(peer->transfer, size);
1fc81821 1741 transfer = peer->transfer;
2bf4942d
FT		 1742 peer->close = 1;
1743 resettransfer(transfer);
1fc81821 1744 trytransferbypeer(transfer->fnet, transfer->peerid);
d3372da9 1745 return;
1746 }
9a2d6cb8 1747 startdl(peer);
1748 qstr(peer->sk, "$Send|");
d3372da9 1749}
1750
1751static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1752{
df873cd0 1753 if(peer->fetchingtthl)
1754 {
1755 peer->fetchingtthl = 0;
1756 peer->notthl = 1;
1757 requestfile(peer);
1758 return;
1759 }
d3372da9 1760 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1761 {
1762 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1763 resettransfer(peer->transfer);
1764 return;
1765 }
2bf4942d 1766 peer->close = 1;
d3372da9 1767}
1768
1769static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1770{
1771 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1772 {
1773 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1774 resettransfer(peer->transfer);
1775 return;
1776 }
2bf4942d 1777 peer->close = 1;
d3372da9 1778}
1779
1780static struct
1781{
1782 char *name;
1783 char **file;
1784 void (*func)(void);
1785} lists[] =
1786{
1787 {"MyList.DcLst", &hmlistname, updatehmlist},
1788 {"files.xml", &xmllistname, updatexmllist},
1789 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1790 {NULL, NULL}
1791};
1792
1793static int openfilelist(char *name)
1794{
1795 int i, fd;
1796 int errnobak;
1797
1798 for(i = 0; lists[i].name != NULL; i++)
1799 {
1800 if(!strcmp(name, lists[i].name))
1801 break;
1802 }
1803 errno = 0;
1804 if(lists[i].name == NULL)
1805 return(-1);
1806 fd = -1;
1807 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1808 lists[i].func();
1809 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1810 {
1811 errnobak = errno;
1812 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1813 errno = errnobak;
1814 return(-1);
1815 }
1816 return(fd);
1817}
1818
1819static struct sharecache *findbytth(char *tth32)
1820{
1821 char *buf;
1822 size_t buflen;
1823 struct sharecache *node;
1824
1825 if((buf = base32decode(tth32, &buflen)) == NULL)
1826 return(NULL);
1827 if(buflen != 24)
1828 {
1829 free(buf);
1830 return(NULL);
1831 }
1832 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1833 {
1834 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1835 break;
1836 }
1837 free(buf);
1838 return(node);
1839}
1840
1841static struct sharecache *resdcpath(char *path, char *charset, char sep)
1842{
1843 struct sharecache *node;
1844 char *p, *p2;
1845
1846 node = shareroot;
1847 p = path;
1848 while(p != NULL)
1849 {
1850 if((p2 = strchr(p, sep)) != NULL)
1851 *(p2++) = 0;
1852 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1853 return(NULL);
1854 p = p2;
1855 }
1856 return(node);
1857}
1858
1859static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1860{
dcf7a1a2 1861 off_t offset;
d3372da9 1862 char *p, *buf;
1863 wchar_t *buf2;
1864 struct sharecache *node;
1865 struct socket *lesk;
1866 int fd;
1867 struct stat sb;
1868
1869 if(peer->transfer == NULL)
1870 {
2bf4942d 1871 peer->close = 1;
d3372da9 1872 return;
1873 }
1874 if((p = strchr(args, '$')) == NULL)
1875 {
2bf4942d 1876 peer->close = 1;
d3372da9 1877 return;
1878 }
1879 *(p++) = 0;
dcf7a1a2 1880 if((offset = (strtoll(p, NULL, 10) - 1)) < 0)
d3372da9 1881 {
2bf4942d 1882 peer->close = 1;
d3372da9 1883 return;
1884 }
1885 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1886 {
1887 qstr(sk, "$Error Could not send file list|");
2bf4942d 1888 peer->close = 1;
d3372da9 1889 return;
1890 } else if(fd >= 0) {
040118de 1891 if((buf2 = nmdc2path(args, DCCHARSET)) != NULL) {
d3372da9 1892 transfersetpath(peer->transfer, buf2);
040118de
FT		 1893 free(buf2);
1894 }
f00d7432 1895 peer->transfer->flags.b.minislot = 1;
d3372da9 1896 }
1897 if(fd < 0)
1898 {
1d85f24b 1899 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 1900 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1901 {
1902 qstrf(sk, "$Error File not in share|");
2bf4942d 1903 peer->close = 1;
d3372da9 1904 return;
1905 }
1906 if((fd = opensharecache(node)) < 0)
1907 {
1908 qstrf(sk, "$Error %s|", strerror(errno));
2bf4942d 1909 peer->close = 1;
d3372da9 1910 return;
1911 }
1912 buf = getfspath(node);
1913 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1914 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1915 else
1916 transfersetpath(peer->transfer, buf2);
1917 free(buf);
1918 }
1919 if(fstat(fd, &sb) < 0)
1920 {
1921 close(fd);
1922 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1923 qstrf(sk, "$Error|");
2bf4942d 1924 peer->close = 1;
d3372da9 1925 return;
1926 }
f00d7432 1927 if(sb.st_size < 65536)
1928 peer->transfer->flags.b.minislot = 1;
1929 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 1930 close(fd);
f00d7432 1931 qstr(sk, "$MaxedOut|");
2bf4942d 1932 peer->close = 1;
f00d7432 1933 return;
1934 }
d3372da9 1935 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1936 {
1937 close(fd);
1938 qstrf(sk, "$Error Offset out of range|");
2bf4942d 1939 peer->close = 1;
d3372da9 1940 return;
1941 }
1942 lesk = wrapsock(fd);
1943 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1944 putsock(lesk);
dcf7a1a2 1945 qstrf(sk, "$FileLength %ji|", (intmax_t)peer->transfer->size);
d3372da9 1946}
1947
1948static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1949{
1950 if(peer->transfer == NULL)
1951 {
2bf4942d 1952 peer->close = 1;
d3372da9 1953 return;
1954 }
1955 if(peer->transfer->localend == NULL)
1956 {
2bf4942d 1957 peer->close = 1;
d3372da9 1958 return;
1959 }
1960 peer->ptclose = 1;
9a2d6cb8 1961 startul(peer);
d3372da9 1962}
1963
1964static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1965{
1966 int i;
1967 char *p, *p2;
1968 char **arr;
1969 size_t arrsize, arrdata;
1970
1971 if(peer->supports != NULL)
1972 {
1973 for(i = 0; peer->supports[i] != NULL; i++)
1974 free(peer->supports[i]);
1975 free(peer->supports);
1976 }
1977 arr = NULL;
1978 arrsize = arrdata = 0;
1979 p = args;
1980 do
1981 {
1982 if((p2 = strchr(p, ' ')) != NULL)
1983 *(p2++) = 0;
1984 if(*p == 0)
1985 continue;
1986 addtobuf(arr, sstrdup(p));
1987 } while((p = p2) != NULL);
1988 addtobuf(arr, NULL);
1989 peer->supports = arr;
d3372da9 1990}
1991
1992static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1993{
1994 int fd;
1995 char *p, *p2;
dcf7a1a2 1996 off_t start, numbytes;
d3372da9 1997 char *charset, *buf;
1998 wchar_t *buf2;
1999 struct sharecache *node;
2000 struct stat sb;
2001 struct socket *lesk;
2002
2003 if(peer->transfer == NULL)
2004 {
2bf4942d 2005 peer->close = 1;
d3372da9 2006 return;
2007 }
2008 p = args;
2009 if((p2 = strchr(p, ' ')) == NULL)
2010 {
2bf4942d 2011 peer->close = 1;
d3372da9 2012 return;
2013 }
2014 *(p2++) = 0;
dcf7a1a2 2015 start = strtoll(p, NULL, 10);
d3372da9 2016 p = p2;
2017 if((p2 = strchr(p, ' ')) == NULL)
2018 {
2bf4942d 2019 peer->close = 1;
d3372da9 2020 return;
2021 }
2022 *(p2++) = 0;
dcf7a1a2 2023 numbytes = strtoll(p, NULL, 10);
d3372da9 2024 p = p2;
2025 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
2026 charset = "UTF-8";
2027 else
1d85f24b 2028 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 2029 charset = DCCHARSET;
2030 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
2031 initcompress(peer, CPRS_ZLIB);
2032 if(((fd = openfilelist(p)) < 0) && (errno != 0))
2033 {
2034 qstr(sk, "$Error Could not send file list|");
2035 return;
2036 } else if(fd >= 0) {
040118de 2037 if((buf2 = nmdc2path(args, charset)) != NULL) {
d3372da9 2038 transfersetpath(peer->transfer, buf2);
040118de
FT		 2039 free(buf2);
2040 }
f00d7432 2041 peer->transfer->flags.b.minislot = 1;
d3372da9 2042 }
2043 if(fd < 0)
2044 {
d3372da9 2045 if((node = resdcpath(p, charset, '\\')) == NULL)
2046 {
2047 qstr(sk, "$Error File not in cache|");
2048 return;
2049 }
2050 if((fd = opensharecache(node)) < 0)
2051 {
2052 qstrf(sk, "$Error %s|", strerror(errno));
2053 return;
2054 }
2055 buf = getfspath(node);
2056 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
2057 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2058 else
2059 transfersetpath(peer->transfer, buf2);
2060 free(buf);
2061 }
2062 if(fstat(fd, &sb) < 0)
2063 {
2064 close(fd);
2065 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2066 qstr(sk, "$Error|");
2067 return;
2068 }
f00d7432 2069 if(sb.st_size < 65536)
2070 peer->transfer->flags.b.minislot = 1;
2071 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
565006d1 2072 close(fd);
f00d7432 2073 qstr(sk, "$MaxedOut|");
2074 return;
2075 }
d3372da9 2076 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2077 {
2078 close(fd);
2079 qstr(sk, "$Error Offset out of range|");
2080 return;
2081 }
2082 if((numbytes < 0) || (start + numbytes > sb.st_size))
2083 numbytes = sb.st_size - start;
2084 lesk = wrapsock(fd);
2085 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2086 putsock(lesk);
dcf7a1a2 2087 qstrf(sk, "$Sending %ji|", (intmax_t)numbytes);
9a2d6cb8 2088 startul(peer);
d3372da9 2089}
2090
2091static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2092{
2093 int i;
2094 char **argv, *buf;
dcf7a1a2 2095 off_t start, numbytes;
d3372da9 2096 struct sharecache *node;
2097 struct stat sb;
2098 struct socket *lesk;
2099 wchar_t *wbuf;
2100 int fd;
2101
2102 if(peer->transfer == NULL)
2103 {
2bf4942d 2104 peer->close = 1;
d3372da9 2105 return;
2106 }
2107 if((argv = parseadc(args)) == NULL)
2108 {
2bf4942d 2109 peer->close = 1;
d3372da9 2110 return;
2111 }
2112 if(parrlen(argv) < 4)
2113 {
2bf4942d 2114 peer->close = 1;
d3372da9 2115 goto out;
2116 }
dcf7a1a2
FT		 2117 start = strtoll(argv[2], NULL, 10);
2118 numbytes = strtoll(argv[3], NULL, 10);
d3372da9 2119 node = NULL;
2120 fd = -1;
2121 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
2122 {
2123 qstr(sk, "$Error Could not send file list|");
2124 goto out;
2125 } else if(fd >= 0) {
040118de 2126 if((wbuf = adc2path(argv[1])) != NULL)
d3372da9 2127 transfersetpath(peer->transfer, wbuf);
c662029b 2128 free(wbuf);
f00d7432 2129 peer->transfer->flags.b.minislot = 1;
d3372da9 2130 }
2131 if(fd < 0)
2132 {
d3372da9 2133 if(!strncmp(argv[1], "TTH/", 4))
2134 {
2135 if((node = findbytth(argv[1] + 4)) == NULL)
2136 {
2137 qstr(sk, "$Error File not in cache|");
2138 goto out;
2139 }
2140 } else {
9a2d6cb8 2141 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
d3372da9 2142 {
2143 qstr(sk, "$Error File not in cache|");
2144 goto out;
2145 }
2146 }
2147 if((fd = opensharecache(node)) < 0)
2148 {
2149 qstrf(sk, "$Error %s|", strerror(errno));
2150 goto out;
2151 }
2152 buf = getfspath(node);
2153 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
2154 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2155 else
2156 transfersetpath(peer->transfer, wbuf);
2157 free(buf);
2158 }
2159 if(!strcmp(argv[0], "file"))
2160 {
2161 for(i = 4; argv[i] != NULL; i++)
2162 {
2163 if(!strcmp(argv[i], "ZL1"))
2164 initcompress(peer, CPRS_ZLIB);
2165 }
2166 if(fstat(fd, &sb) < 0)
2167 {
2168 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2169 qstr(sk, "$Error|");
2170 goto out;
2171 }
f00d7432 2172 if(sb.st_size < 65536)
2173 peer->transfer->flags.b.minislot = 1;
2174 if(!peer->transfer->flags.b.minislot && (slotsleft() < 1)) {
2175 qstr(sk, "$MaxedOut|");
2176 goto out;
2177 }
d3372da9 2178 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2179 {
2180 qstr(sk, "$Error Offset out of range|");
2181 goto out;
2182 }
2183 if((numbytes < 0) || (start + numbytes > sb.st_size))
2184 numbytes = sb.st_size - start;
2185 lesk = wrapsock(fd);
2186 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2187 putsock(lesk);
2188 fd = -1;
2189 qstr(sk, "$ADCSND");
2190 sendadc(sk, "file");
2191 sendadc(sk, argv[1]);
dcf7a1a2
FT		 2192 sendadcf(sk, "%ji", (intmax_t)start);
2193 sendadcf(sk, "%ji", (intmax_t)numbytes);
d3372da9 2194 if(peer->compress == CPRS_ZLIB)
2195 sendadc(sk, "ZL1");
2196 qstr(sk, "|");
9a2d6cb8 2197 startul(peer);
d3372da9 2198 } else if(!strcmp(argv[0], "tthl")) {
2199 /*
2200 * XXX: Implement full TTHL support.
2201 *
2202 * In the meantime, this is better than nothing, since it at
2203 * least allows fetching of the TTH root if it isn't already
2204 * known.
2205 */
2206 if(node == NULL)
2207 {
2208 qstr(sk, "$Error no TTHL data for virtual files|");
2209 goto out;
2210 }
2211 qstr(sk, "$ADCSND");
2212 sendadc(sk, "tthl");
2213 sendadc(sk, argv[1]);
2214 sendadc(sk, "0");
2215 sendadc(sk, "24");
2216 qstr(sk, "|");
2217 sockqueue(sk, node->hashtth, 24);
2218 } else {
2219 qstr(sk, "$Error Namespace not implemented|");
2220 goto out;
2221 }
d3372da9 2222
2223 out:
2224 if(fd >= 0)
2225 close(fd);
2226 freeparr(argv);
2227}
2228
9a2d6cb8 2229static void handletthl(struct dcpeer *peer)
2230{
2231 char buf[24];
2232
2233 while(peer->inbufdata >= 24)
2234 {
2235 pushtigertree(&peer->tth, peer->inbuf);
2236 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
e52006fe 2237 peer->curread += 24;
9a2d6cb8 2238 }
e52006fe 2239 if(peer->curread >= peer->totalsize)
9a2d6cb8 2240 {
1e9d82b1 2241 if(peer->timeout == NULL)
2242 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 2243 peer->state = PEER_CMD;
2244 synctigertree(&peer->tth);
2245 restigertree(&peer->tth, buf);
2246 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2247 requestfile(peer);
2248 }
2249}
2250
2251static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2252{
2253 char **argv;
dcf7a1a2 2254 off_t start, numbytes;
9a2d6cb8 2255
2256 if(peer->transfer == NULL)
2257 {
2bf4942d 2258 peer->close = 1;
9a2d6cb8 2259 return;
2260 }
2261 if((argv = parseadc(args)) == NULL)
2262 {
2bf4942d 2263 peer->close = 1;
9a2d6cb8 2264 return;
2265 }
2266 if(parrlen(argv) < 4)
2267 {
2bf4942d 2268 peer->close = 1;
9a2d6cb8 2269 goto out;
2270 }
dcf7a1a2
FT		 2271 start = strtoll(argv[2], NULL, 10);
2272 numbytes = strtoll(argv[3], NULL, 10);
9a2d6cb8 2273 if(!strcmp(argv[0], "tthl"))
2274 {
2275 if((start != 0) || (numbytes % 24 != 0))
2276 {
2277 /* Weird. Bail out. */
2bf4942d 2278 peer->close = 1;
9a2d6cb8 2279 goto out;
2280 }
1e9d82b1 2281 if(peer->timeout != NULL)
2282 canceltimer(peer->timeout);
9a2d6cb8 2283 peer->state = PEER_TTHL;
2284 peer->totalsize = numbytes;
2285 peer->curread = 0;
df873cd0 2286 peer->fetchingtthl = 0;
9a2d6cb8 2287 inittigertree(&peer->tth);
2288 handletthl(peer);
2289 } else if(!strcmp(argv[0], "file")) {
2290 if(start != peer->transfer->curpos)
2291 {
2bf4942d 2292 peer->close = 1;
9a2d6cb8 2293 goto out;
2294 }
2295 if(start + numbytes != peer->transfer->size)
2296 {
2297 transfersetsize(peer->transfer, start + numbytes);
2bf4942d 2298 peer->close = 1;
9a2d6cb8 2299 goto out;
2300 }
2301 startdl(peer);
cab0b442 2302 if(peer->inbufdata > 0)
2303 {
2304 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2305 peer->inbufdata = 0;
cab0b442 2306 }
9a2d6cb8 2307 } else {
2308 /* We certainly didn't request this...*/
2bf4942d 2309 peer->close = 1;
9a2d6cb8 2310 goto out;
2311 }
2312
2313 out:
2314 freeparr(argv);
2315}
2316
2317static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2318{
dcf7a1a2 2319 off_t numbytes;
9a2d6cb8 2320
2321 if(peer->transfer == NULL)
2322 {
2bf4942d 2323 peer->close = 1;
9a2d6cb8 2324 return;
2325 }
dcf7a1a2 2326 numbytes = strtoll(args, NULL, 10);
9a2d6cb8 2327 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2328 {
2329 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2bf4942d 2330 peer->close = 1;
9a2d6cb8 2331 return;
2332 }
2333 startdl(peer);
cab0b442 2334 if(peer->inbufdata > 0)
2335 {
2336 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2337 peer->inbufdata = 0;
cab0b442 2338 }
9a2d6cb8 2339}
2340
d3372da9 2341/*
2342Hub skeleton:
2343static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2344{
2345 struct dchub *hub;
2346
2347 hub = fn->data;
2348 hubhandleaction(sk, fn, cmd, args);
2349}
2350
2351Peer skeleton:
2352static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2353{
d3372da9 2354}
2355
2356*/
2357
2358static int hubreqconn(struct fnetpeer *peer)
2359{
2360 struct dchub *hub;
2361 char *mbsnick;
2362
2363 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2364 {
2365 errno = EINVAL;
2366 return(1);
2367 }
2368 if((hub = peer->fn->data) == NULL)
2369 {
2370 errno = EFAULT;
2371 return(1);
2372 }
1d85f24b 2373 if((mbsnick = icwcstombs(peer->id, hub->charset)) == NULL)
d3372da9 2374 return(1); /* Shouldn't happen, of course, but who knows... */
2375 if(tcpsock != NULL)
2376 {
ffa81d5f 2377 sendctm(hub->sk, mbsnick);
d3372da9 2378 expectpeer(mbsnick, peer->fn);
2379 } else {
ffa81d5f 2380 qstrf(hub->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
d3372da9 2381 }
2382 free(mbsnick);
2383 return(0);
2384}
2385
2386static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2387{
2388 struct dchub *hub;
2389 char *mbsstring, *mbsto;
2390
2391 hub = fn->data;
1d85f24b 2392 if((mbsto = icwcstombs(to, hub->charset)) == NULL)
d3372da9 2393 {
2394 errno = EILSEQ;
2395 return(1);
2396 }
1d85f24b 2397 if((mbsstring = icwcstombs(string, hub->charset)) == NULL)
d3372da9 2398 {
2399 errno = EILSEQ;
2400 return(1);
2401 }
2402 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2403 {
2404 free(mbsto);
2405 free(mbsstring);
2406 errno = ESRCH;
2407 return(1);
2408 }
2409 if(strchr(mbsstring, '|') != NULL)
2410 {
2411 free(mbsto);
2412 free(mbsstring);
2413 errno = EILSEQ;
2414 return(1);
2415 }
2416 if(public)
2417 {
2418 if(*to == L'\0')
2419 {
ffa81d5f 2420 qstrf(hub->sk, "<%s> %s|", hub->nativenick, mbsstring);
d3372da9 2421 } else {
ffa81d5f 2422 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2423 }
2424 } else {
ffa81d5f 2425 qstrf(hub->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
d3372da9 2426 }
2427 free(mbsto);
2428 free(mbsstring);
2429 return(0);
2430}
2431
4e564b59 2432static void findsizelimit(struct sexpr *sexpr, off_t *min, off_t *max)
d3372da9 2433{
4e564b59 2434 off_t minl, maxl, minr, maxr, retmin, retmax;
d3372da9 2435
2436 switch(sexpr->op)
2437 {
2438 case SOP_AND:
2439 findsizelimit(sexpr->l, &minl, &maxl);
2440 findsizelimit(sexpr->r, &minr, &maxr);
2441 retmin = (minl > minr)?minl:minr;
2442 if((maxl != -1) && (maxr != -1))
2443 retmax = (maxl < maxr)?maxl:maxr;
2444 else if(maxl != -1)
2445 retmax = maxl;
2446 else if(maxr != -1)
2447 retmax = maxr;
2448 else
2449 retmax = -1;
2450 break;
2451 case SOP_OR:
2452 findsizelimit(sexpr->l, &minl, &maxl);
2453 findsizelimit(sexpr->r, &minr, &maxr);
2454 retmin = (minl < minr)?minl:minr;
2455 if((maxl == -1) || (maxr == -1))
2456 retmax = -1;
2457 else
2458 retmax = (maxl > maxr)?maxl:maxr;
2459 break;
2460 case SOP_NOT:
2461 findsizelimit(sexpr->l, &minl, &maxl);
2462 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2463 {
2464 retmin = 0;
2465 retmax = -1;
2466 } else if((minl == 0) && (maxl != -1)) {
2467 retmin = maxl + 1;
2468 retmax = -1;
2469 } else if((minl != 0) && (maxl == -1)) {
2470 retmin = 0;
2471 retmax = minl - 1;
2472 } else { /* This would yield two seperate intervals, which DC cannot handle */
2473 retmin = 0;
2474 retmax = -1;
2475 }
2476 case SOP_SIZELT:
2477 retmin = 0;
4e564b59 2478 retmax = sexpr->d.sz - 1;
d3372da9 2479 break;
2480 case SOP_SIZEEQ:
4e564b59
FT		 2481 retmin = sexpr->d.sz;
2482 retmax = sexpr->d.sz;
d3372da9 2483 break;
2484 case SOP_SIZEGT:
4e564b59 2485 retmin = sexpr->d.sz + 1;
d3372da9 2486 retmax = -1;
2487 break;
2488 default:
2489 retmin = 0;
2490 retmax = -1;
2491 break;
2492 }
2493 if(min != NULL)
2494 *min = retmin;
2495 if(max != NULL)
2496 *max = retmax;
2497}
2498
9d8cf743 2499static struct hash *findsehash(struct sexpr *sexpr)
2500{
2501 struct hash *h1, *h2;
2502
2503 switch(sexpr->op)
2504 {
2505 case SOP_AND:
2506 if((h1 = findsehash(sexpr->l)) != NULL)
2507 return(h1);
2508 if((h1 = findsehash(sexpr->r)) != NULL)
2509 return(h1);
2510 break;
2511 case SOP_OR:
175c86de 2512 if((h1 = findsehash(sexpr->l)) == NULL)
2513 return(NULL);
2514 if((h2 = findsehash(sexpr->r)) == NULL)
2515 return(NULL);
9d8cf743 2516 if(hashcmp(h1, h2))
2517 return(h1);
2518 break;
2519 case SOP_HASHIS:
2520 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2521 return(sexpr->d.hash);
2522 default:
2523 break;
2524 }
2525 return(NULL);
2526}
2527
d3372da9 2528static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2529{
2530 struct dchub *hub;
2531 struct wcslist *list, *cur;
2532 char *sstr, *buf, *p;
2533 size_t sstrsize, sstrdata;
2534 struct sockaddr *name;
2535 socklen_t namelen;
4e564b59 2536 off_t minsize, maxsize;
9d8cf743 2537 struct hash *hash;
d3372da9 2538
2539 hub = fn->data;
ffa81d5f 2540 if((fn->state != FNN_EST) || (hub->sk == NULL) || (hub->sk->state != SOCK_EST))
d3372da9 2541 return(1);
2542 list = findsexprstrs(srch->sexpr);
2543 findsizelimit(srch->sexpr, &minsize, &maxsize);
9d8cf743 2544 hash = findsehash(srch->sexpr);
d3372da9 2545 if((minsize != 0) && (maxsize != -1))
2546 {
2547 /* Choose either minsize or maxsize by trying to determine
2548 * which choice will be most restrictive. The result can be
2549 * approximative at best anyway, so don't try too hard... */
2550 if((50000000 - maxsize) > (minsize - 50000000))
2551 minsize = 0;
2552 else
2553 maxsize = -1;
2554 }
d3372da9 2555 sstr = NULL;
2556 sstrsize = sstrdata = 0;
9d8cf743 2557 if((hash != NULL) && (hash->len == 24))
d3372da9 2558 {
9d8cf743 2559 /* Prioritize hash searches above all else */
2560 bufcat(sstr, "F?T?0?9?TTH:", 12);
2561 buf = base32encode(hash->buf, hash->len);
2562
2563 bufcat(sstr, buf, 39);
2564 free(buf);
2565 } else {
2566 if(minsize != 0)
d3372da9 2567 {
9d8cf743 2568 sizebuf2(sstr, sstrdata + 32, 1);
4e564b59 2569 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%ji?1?", (intmax_t)minsize);
9d8cf743 2570 } else if(maxsize != -1) {
2571 sizebuf2(sstr, sstrdata + 32, 1);
4e564b59 2572 sstrdata += snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%ji?1?", (intmax_t)maxsize);
9d8cf743 2573 } else {
2574 bufcat(sstr, "F?F?0?1?", 8);
2575 }
2576 if(list != NULL)
2577 {
2578 for(cur = list; cur != NULL; cur = cur->next)
d3372da9 2579 {
1d85f24b 2580 /* Use DCCHARSET in $Get paths until further researched... */
9d8cf743 2581 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2582 {
2583 /* Can't find anything anyway if the search expression
2584 * requires characters outside DC's charset. There's
2585 * nothing technically wrong with the search itself,
2586 * however, so return success. This should be
2587 * considered as an optimization. */
2588 freesl(&list);
2589 if(sstr != NULL)
2590 free(sstr);
2591 return(0);
2592 }
2593 if(cur != list)
2594 addtobuf(sstr, '$');
2595 /*
2596 * It probably doesn't hurt if buf contains any extra
2597 * dollar signs - it will just result in extra search
2598 * terms, and the extraneous results will be filtered by
2599 * the search layer anyway. It hurts if it contains any
2600 * pipes, though, so let's sell them for money.
2601 */
2602 for(p = buf; *p; p++)
2603 {
2604 if(*p == '|')
2605 *p = '$';
2606 }
2607 bufcat(sstr, buf, strlen(buf));
2608 free(buf);
d3372da9 2609 }
9d8cf743 2610 } else {
2611 /* Will match all files... :-/ */
2612 addtobuf(sstr, '.');
d3372da9 2613 }
d3372da9 2614 }
2615 addtobuf(sstr, 0);
2616 if(tcpsock != NULL)
2617 {
ffa81d5f 2618 if(sockgetremotename2(udpsock, hub->sk, &name, &namelen) < 0)
d3372da9 2619 {
2620 flog(LOG_WARNING, "cannot get address of UDP socket");
2621 } else {
ffa81d5f 2622 qstrf(hub->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
d3372da9 2623 free(name);
2624 }
2625 } else {
ffa81d5f 2626 qstrf(hub->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
d3372da9 2627 }
2628 free(sstr);
2629 freesl(&list);
2630 fn->lastsrch = time(NULL);
2631 return(0);
2632}
2633
2634#undef skipcmd
2635#undef qstr
2636#undef qstrf
2637
2638#define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
8b930085 2639static struct command hubcmds[] =
d3372da9 2640{
2641 {"$Lock", cc(cmd_lock)},
2642 {"$HubName", cc(cmd_hubname)},
2643 {"$Hello", cc(cmd_hello)},
2644 {"$Quit", cc(cmd_quit)},
2645 {"$NickList", cc(cmd_nicklist)},
2646 {"$OpList", cc(cmd_oplist)},
2647 {"$MyINFO", cc(cmd_myinfo)},
2648 {"$ForceMove", cc(cmd_forcemove)},
8cb2d75b
FT		 2649 {"$Search", cc(cmd_search), .limit = 100},
2650 {"$MultiSearch", cc(cmd_search), .limit = 50},
2651 {"$ConnectToMe", cc(cmd_connecttome), .limit = 200},
2652 {"$RevConnectToMe", cc(cmd_revconnecttome), .limit = 500},
d3372da9 2653 {"$GetNetInfo", cc(cmd_getnetinfo)},
2654 {"$To:", cc(cmd_to)},
2655 {"$SR", cc(cmd_sr)},
2656 {"$UserCommand", cc(cmd_usercommand)},
48509089 2657 {"$GetPass", cc(cmd_getpass)},
c9b3ad74 2658 {"$LogedIn", cc(cmd_logedin)}, /* sic */
08b74f8c 2659 {"$Supports", cc(cmd_hubsupports)},
d3372da9 2660 {NULL, NULL}
2661};
2662
8b930085 2663static struct command peercmds[] =
d3372da9 2664{
2665 {"$MyNick", cc(cmd_mynick)},
2666 {"$Lock", cc(cmd_peerlock)},
2667 {"$Direction", cc(cmd_direction)},
2668 {"$Key", cc(cmd_key)},
2669 {"$FileLength", cc(cmd_filelength)},
2670 {"$Error", cc(cmd_error)},
2671 {"$MaxedOut", cc(cmd_maxedout)},
2672 {"$Get", cc(cmd_get)},
2673 {"$Send", cc(cmd_send)},
2674 {"$Supports", cc(cmd_supports)},
2675 {"$GetBlock", cc(cmd_getblock)},
2676 {"$UGetBlock", cc(cmd_getblock)},
2677 {"$GetZBlock", cc(cmd_getblock)},
2678 {"$UGetZBlock", cc(cmd_getblock)},
2679 {"$ADCGET", cc(cmd_adcget)},
8cb2d75b
FT		 2680 {"$ADCSND", cc(cmd_adcsnd), .stop = 1},
2681 {"$Sending", cc(cmd_sending), .stop = 1},
d3372da9 2682 {NULL, NULL}
2683};
2684#undef cc
2685
d3372da9 2686static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2687{
2688 int ret;
2689 void *buf;
c7185019 2690 unsigned char outbuf[1024];
d3372da9 2691 z_stream *cstr;
2692 size_t bufsize;
2693
2694 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2695 {
81286a22 2696 if(sockqueueleft(peer->sk) > 0)
d3372da9 2697 {
1ff9e8ea 2698 if((buf = sockgetinbuf(peer->trpipe, &bufsize)) != NULL)
d3372da9 2699 {
bd5d862e
FT		 2700 if(peer->compress == CPRS_NONE)
2701 {
2702 sockqueue(peer->sk, buf, bufsize);
2703 } else if(peer->compress == CPRS_ZLIB) {
2704 cstr = peer->cprsdata;
2705 cstr->next_in = buf;
2706 cstr->avail_in = bufsize;
2707 while(cstr->avail_in > 0)
d3372da9 2708 {
bd5d862e
FT		 2709 cstr->next_out = outbuf;
2710 cstr->avail_out = sizeof(outbuf);
2711 if((ret = deflate(cstr, 0)) != Z_OK)
d3372da9 2712 {
bd5d862e
FT		 2713 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2714 freedcpeer(peer);
2715 return;
d3372da9 2716 }
bd5d862e 2717 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
d3372da9 2718 }
2719 }
2720 free(buf);
2721 }
2722 if(peer->state == PEER_SYNC)
2723 {
2724 if(peer->compress == CPRS_ZLIB)
2725 {
2726 cstr = peer->cprsdata;
2727 cstr->next_in = NULL;
2728 cstr->avail_in = 0;
2729 do
2730 {
2731 cstr->next_out = outbuf;
2732 cstr->avail_out = sizeof(outbuf);
2733 ret = deflate(cstr, Z_FINISH);
2734 if((ret != Z_OK) && (ret != Z_STREAM_END))
2735 {
2736 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2737 freedcpeer(peer);
2738 return;
2739 }
2740 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2741 } while(ret != Z_STREAM_END);
2742 }
2743 if(peer->ptclose)
2744 {
aa99ddc9 2745 peer->close = 1;
d3372da9 2746 } else {
1e9d82b1 2747 if(peer->timeout == NULL)
2748 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 2749 peer->state = PEER_CMD;
2750 endcompress(peer);
2751 transfersetstate(transfer, TRNS_HS);
2752 socksettos(peer->sk, confgetint("fnet", "fnptos"));
bfc261fe 2753 transfer->flags.b.minislot = 0;
cab0b442 2754 peer->sk->writecb = NULL;
d3372da9 2755 }
2756 }
2757 }
2758 }
2759}
2760
aa99ddc9
FT		 2761static void peerdetach(struct dcpeer *peer)
2762{
2763 CBUNREG(peer->transfer, trans_filterout, peer);
c3d01fa9 2764 CBUNREG(peer->transfer, trans_destroy, peer);
284e199a 2765 peer->trpipe->pnext = NULL;
aa99ddc9
FT		 2766 closesock(peer->trpipe);
2767 quitsock(peer->trpipe);
2768 peer->trpipe = NULL;
aa99ddc9
FT		 2769 peer->transfer = NULL;
2770}
2771
c3d01fa9
FT		 2772static int trdestroycb(struct transfer *transfer, struct dcpeer *peer)
2773{
2774 peerdetach(peer);
2775 peer->close = 1;
2776 return(0);
2777}
2778
cab0b442 2779static void transread(struct socket *sk, struct dcpeer *peer)
d3372da9 2780{
cab0b442 2781 void *buf;
2782 size_t bufsize;
d3372da9 2783
c3d01fa9
FT		 2784 if(peer->transfer == NULL) {
2785 freedcpeer(peer);
2786 return;
2787 }
1ff9e8ea 2788 if(sockqueueleft(peer->trpipe) < 0)
81286a22 2789 return;
bd5d862e 2790 if((buf = sockgetinbuf(sk, &bufsize)) != NULL)
d3372da9 2791 {
bd5d862e
FT		 2792 if(peer->transfer == NULL)
2793 {
2794 free(buf);
2795 freedcpeer(peer);
2796 return;
2797 }
2798 sockqueue(peer->trpipe, buf, bufsize);
cab0b442 2799 free(buf);
d3372da9 2800 }
d3372da9 2801 if(peer->transfer->curpos >= peer->transfer->size)
2802 {
aa99ddc9 2803 peerdetach(peer);
1ff9e8ea 2804 peer->close = 1;
d3372da9 2805 return;
2806 }
81286a22
FT		 2807}
2808
cab0b442 2809static void transerr(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 2810{
2811 struct transfer *transfer;
2812
2813 if((transfer = peer->transfer) == NULL)
cab0b442 2814 {
2815 freedcpeer(peer);
d3372da9 2816 return;
cab0b442 2817 }
aa99ddc9 2818 peerdetach(peer);
1ff9e8ea 2819 peer->close = 1;
d3372da9 2820}
2821
cab0b442 2822static void transwrite(struct socket *sk, struct dcpeer *peer)
d3372da9 2823{
2824 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
cab0b442 2825 return;
d3372da9 2826 if(peer->transfer == NULL)
2827 {
2828 freedcpeer(peer);
cab0b442 2829 return;
d3372da9 2830 }
2831 dctransgotdata(peer->transfer, peer);
284e199a 2832 sockread(peer->trpipe);
d3372da9 2833}
2834
bd5d862e
FT		 2835static void trpiperead(struct socket *sk, struct dcpeer *peer)
2836{
2837 dctransgotdata(peer->transfer, peer);
2838}
2839
2840static void trpipewrite(struct socket *sk, struct dcpeer *peer)
2841{
2842 transread(peer->sk, peer);
2843}
2844
2845static void trpipeerr(struct socket *sk, int errno, struct dcpeer *peer)
2846{
2847 peer->state = PEER_SYNC;
2848 dctransgotdata(peer->transfer, peer);
aa99ddc9 2849 peerdetach(peer);
b38037ff 2850 if(peer->state != PEER_CMD)
aa99ddc9 2851 peer->close = 1;
bd5d862e
FT		 2852}
2853
2854static struct socket *mktrpipe(struct dcpeer *peer)
2855{
2856 struct socket *sk;
2857
2858 sk = netsockpipe();
284e199a 2859 sk->pnext = peer->sk;
bd5d862e
FT		 2860 sk->data = peer;
2861 sk->readcb = (void (*)(struct socket *, void *))trpiperead;
2862 sk->writecb = (void (*)(struct socket *, void *))trpipewrite;
2863 sk->errcb = (void (*)(struct socket *, int, void *))trpipeerr;
2864 return(sk);
2865}
2866
cab0b442 2867static void udpread(struct socket *sk, void *data)
d3372da9 2868{
d86b7a9f 2869 char *buf, *p, *p2, *hashbuf;
2870 size_t buflen, hashlen;
d3372da9 2871 char *nick, *filename, *hubname;
99a28d47 2872 struct sockaddr_in hubaddr;
d1ef0200 2873 struct sockaddr *addrbuf;
dcf7a1a2
FT		 2874 off_t size;
2875 int slots;
d3372da9 2876 struct fnetnode *fn, *myfn;
2877 struct dchub *hub;
2878 struct srchres *sr;
2879 wchar_t *wnick, *wfile;
d86b7a9f 2880 struct hash *hash;
d3372da9 2881
2882 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
cab0b442 2883 return;
d3372da9 2884 buf = srealloc(buf, buflen + 1);
2885 buf[buflen] = 0;
2886 if(!strncmp(buf, "$SR ", 4))
2887 {
2888 p = buf + 4;
2889 nick = p;
2890 if((p2 = strchr(p, ' ')) == NULL)
2891 {
2892 free(buf);
cab0b442 2893 return;
d3372da9 2894 }
2895 *p2 = 0;
2896 p = p2 + 1;
2897 filename = p;
2898 if((p2 = strchr(p, 5)) == NULL)
2899 {
2900 free(buf);
cab0b442 2901 return;
d3372da9 2902 }
2903 *p2 = 0;
2904 p = p2 + 1;
2905 if((p2 = strchr(p, ' ')) == NULL)
2906 {
2907 free(buf);
cab0b442 2908 return;
d3372da9 2909 }
2910 *p2 = 0;
dcf7a1a2 2911 size = strtoll(p, NULL, 10);
d3372da9 2912 p = p2 + 1;
2913 if((p2 = strchr(p, '/')) == NULL)
2914 {
2915 free(buf);
cab0b442 2916 return;
d3372da9 2917 }
2918 *p2 = 0;
2919 slots = atoi(p);
2920 p = p2 + 1;
2921 if((p2 = strchr(p, 5)) == NULL)
2922 {
2923 free(buf);
cab0b442 2924 return;
d3372da9 2925 }
2926 p = p2 + 1;
2927 hubname = p;
2928 if((p2 = strstr(p, " (")) == NULL)
2929 {
2930 free(buf);
cab0b442 2931 return;
d3372da9 2932 }
2933 *p2 = 0;
99a28d47 2934 p = p2 + 2;
2935 if((p2 = strchr(p, ':')) == NULL)
2936 {
2937 free(buf);
cab0b442 2938 return;
99a28d47 2939 }
870bf4ad 2940 *(p2++) = 0;
99a28d47 2941 hubaddr.sin_family = AF_INET;
2942 if(!inet_aton(p, &hubaddr.sin_addr))
2943 {
2944 free(buf);
cab0b442 2945 return;
99a28d47 2946 }
2947 p = p2;
2948 if((p2 = strchr(p, ')')) == NULL)
2949 {
2950 free(buf);
cab0b442 2951 return;
99a28d47 2952 }
2953 *p2 = 0;
2954 hubaddr.sin_port = htons(atoi(p));
1d85f24b 2955 /* Use DCCHARSET in $Get paths until further researched... */
040118de 2956 if((wfile = nmdc2path(filename, DCCHARSET)) == NULL)
d3372da9 2957 {
d3372da9 2958 free(buf);
cab0b442 2959 return;
d3372da9 2960 }
2961 myfn = NULL;
d86b7a9f 2962 hash = NULL;
2963 if(!strncmp(hubname, "TTH:", 4))
d3372da9 2964 {
d86b7a9f 2965 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2966 {
2967 if(hashlen == 24)
2968 hash = newhash(L"TTH", 24, hashbuf);
2969 free(hashbuf);
2970 }
2971 } else {
2972 for(fn = fnetnodes; fn != NULL; fn = fn->next)
d3372da9 2973 {
d86b7a9f 2974 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
d3372da9 2975 {
d86b7a9f 2976 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
d3372da9 2977 {
d86b7a9f 2978 if(myfn == NULL)
2979 {
2980 myfn = fn;
2981 } else {
2982 myfn = NULL;
2983 break;
2984 }
d3372da9 2985 }
2986 }
2987 }
2988 }
99a28d47 2989 if(myfn == NULL)
2990 {
2991 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2992 {
d1ef0200 2993 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL) && !sockpeeraddr(hub->sk, &addrbuf, NULL))
99a28d47 2994 {
d1ef0200 2995 if((hub->sk != NULL) && addreq(addrbuf, (struct sockaddr *)&hubaddr))
ffa81d5f
FT		 2996 {
2997 myfn = fn;
42a86a24 2998 free(addrbuf);
ffa81d5f
FT		 2999 break;
3000 }
d1ef0200 3001 free(addrbuf);
99a28d47 3002 }
3003 }
3004 }
1d85f24b 3005 hub = NULL;
3006 if(myfn != NULL)
3007 hub = myfn->data;
3008 if((wnick = icmbstowcs(nick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
3009 {
3010 free(buf);
cab0b442 3011 return;
1d85f24b 3012 }
d3372da9 3013 sr = newsrchres(&dcnet, wfile, wnick);
3014 if(sr->peernick != NULL)
3015 free(sr->peernick);
3016 sr->peernick = swcsdup(wnick);
3017 sr->size = size;
3018 sr->slots = slots;
3019 free(wfile);
3020 free(wnick);
3021 if(myfn != NULL)
3022 getfnetnode(sr->fn = myfn);
d86b7a9f 3023 if(hash != NULL)
3024 sr->hash = hash;
d3372da9 3025 submitsrchres(sr);
3026 freesrchres(sr);
3027 }
3028 free(buf);
3029}
3030
3031static void hubread(struct socket *sk, struct fnetnode *fn)
3032{
3033 struct dchub *hub;
8cb2d75b 3034 struct command *cmd;
d3372da9 3035 char *newbuf;
8cb2d75b 3036 size_t datalen, cnlen;
c319fb93 3037 char *p, *p2;
d3372da9 3038
3039 hub = (struct dchub *)fn->data;
81286a22
FT		 3040 if(hub->queue.size > 1000)
3041 return;
d3372da9 3042 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
3043 return;
3044 if(hub->inbufdata > 500000) /* Discard possible malicious data */
3045 hub->inbufdata = 0;
3046 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
3047 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
3048 free(newbuf);
c319fb93 3049 p = hub->inbuf;
d3372da9 3050 hub->inbufdata += datalen;
28a3ef52 3051 while((p - hub->inbuf < hub->inbufdata) && ((p2 = memchr(p, '|', hub->inbufdata - (p - hub->inbuf))) != NULL))
d3372da9 3052 {
c319fb93 3053 *(p2++) = 0;
8cb2d75b
FT		 3054 for(cmd = hubcmds; cmd->handler != NULL; cmd++)
3055 {
3056 cnlen = strlen(cmd->name);
c319fb93 3057 if(!strncmp(p, cmd->name, cnlen) && ((p[cnlen] == ' ') || (p[cnlen] == 0)))
8cb2d75b
FT		 3058 break;
3059 }
3060 if((cmd->limit == 0) || (hub->queue.size < cmd->limit))
c319fb93 3061 newqcmd(&hub->queue, p);
c319fb93 3062 p = p2;
d3372da9 3063 }
c319fb93 3064 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
d3372da9 3065}
3066
3067static void huberr(struct socket *sk, int err, struct fnetnode *fn)
3068{
3069 killfnetnode(fn);
3070}
3071
3072static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
3073{
3074 struct dchub *hub;
3075 char *buf;
3076
3077 hub = fn->data;
1d85f24b 3078 if((buf = icwcstombs(newnick, (hub == NULL)?DCCHARSET:(hub->charset))) == NULL)
d3372da9 3079 return(1);
3080 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
3081 {
3082 free(buf);
3083 return(1);
3084 }
3085 if(hub == NULL) /* Not yet connected */
3086 {
3087 free(buf);
3088 return(0);
3089 }
3090 if(hub->nativenick != NULL)
3091 free(hub->nativenick);
3092 hub->nativenick = buf;
3093 return(0);
3094}
3095
3096static struct dchub *newdchub(struct fnetnode *fn)
3097{
3098 struct dchub *new;
1c4b02cd 3099 wchar_t *emu;
1d85f24b 3100 wchar_t *wcharset;
3101 char *charset;
d3372da9 3102
3103 new = smalloc(sizeof(*new));
3104 memset(new, 0, sizeof(*new));
3105 fn->data = new;
1c4b02cd 3106 if(confgetint("dc", "dcppemu"))
3107 new->dcppemu = 1;
3108 if((emu = wpfind(fn->args, L"dcppemu")) != NULL)
3109 {
3110 if(*emu == L'y')
3111 new->dcppemu = 1;
3112 if(*emu == L'n')
3113 new->dcppemu = 0;
3114 }
1d85f24b 3115 charset = NULL;
3116 if((wcharset = wpfind(fn->args, L"charset")) != NULL)
3117 {
3118 if((charset = icwcstombs(wcharset, "US-ASCII")) != NULL)
3119 {
3120 if(!havecharset(charset))
3121 {
3122 free(charset);
3123 charset = NULL;
3124 }
3125 }
3126 }
3127 if(charset != NULL)
3128 new->charset = charset;
3129 else
3130 new->charset = sstrdup(DCCHARSET);
d3372da9 3131 if(hubsetnick(fn, fn->mynick))
3132 fnetsetnick(fn, L"DoldaConnectUser-IN");
3133 /* IN as in Invalid Nick */
3134 return(new);
3135}
3136
3137static struct dcpeer *newdcpeer(struct socket *sk)
3138{
3139 struct dcpeer *new;
3140
3141 new = smalloc(sizeof(*new));
3142 memset(new, 0, sizeof(*new));
d3372da9 3143 getsock(sk);
3144 new->sk = sk;
1c4b02cd 3145 if(confgetint("dc", "dcppemu"))
3146 new->dcppemu = 1;
d3372da9 3147 new->next = peers;
3148 new->prev = NULL;
3149 if(peers != NULL)
3150 peers->prev = new;
3151 peers = new;
3152 numdcpeers++;
3153 return(new);
3154}
3155
3156static void freedcpeer(struct dcpeer *peer)
3157{
3158 int i;
3159 struct qcommand *qcmd;
3160
d3372da9 3161 if(peers == peer)
3162 peers = peer->next;
3163 if(peer->next != NULL)
3164 peer->next->prev = peer->prev;
3165 if(peer->prev != NULL)
3166 peer->prev->next = peer->next;
3167 if(peer->transfer != NULL)
aa99ddc9 3168 peerdetach(peer);
1e9d82b1 3169 if(peer->timeout != NULL)
3170 canceltimer(peer->timeout);
cab0b442 3171 if(peer->sk->data == peer)
3172 peer->sk->data = NULL;
3173 peer->sk->readcb = NULL;
3174 peer->sk->writecb = NULL;
3175 peer->sk->errcb = NULL;
d3372da9 3176 putsock(peer->sk);
3177 endcompress(peer);
3178 if(peer->supports != NULL)
3179 {
3180 for(i = 0; peer->supports[i] != NULL; i++)
3181 free(peer->supports[i]);
3182 free(peer->supports);
3183 }
d3372da9 3184 if(peer->inbuf != NULL)
3185 free(peer->inbuf);
3186 if(peer->key != NULL)
3187 free(peer->key);
3188 if(peer->wcsname != NULL)
3189 free(peer->wcsname);
3190 if(peer->nativename != NULL)
3191 free(peer->nativename);
1d85f24b 3192 if(peer->charset != NULL)
3193 free(peer->charset);
d3372da9 3194 if(peer->fn != NULL)
3195 putfnetnode(peer->fn);
3196 while((qcmd = ulqcmd(&peer->queue)) != NULL)
3197 freeqcmd(qcmd);
3198 free(peer);
3199 numdcpeers--;
3200}
3201
ffa81d5f 3202static void hubconnect(struct fnetnode *fn, struct socket *sk)
d3372da9 3203{
ffa81d5f
FT		 3204 struct dchub *hub;
3205
3206 sk->readcb = (void (*)(struct socket *, void *))hubread;
3207 sk->errcb = (void (*)(struct socket *, int, void *))huberr;
3208 fn->data = hub = newdchub(fn);
3209 sk->data = fn;
3210 getsock(hub->sk = sk);
d3372da9 3211 return;
3212}
3213
3214static void hubdestroy(struct fnetnode *fn)
3215{
08b74f8c 3216 int i;
d3372da9 3217 struct dchub *hub;
3218 struct qcommand *qcmd;
3219
3220 hub = (struct dchub *)fn->data;
7665d29d 3221 quitsock(hub->sk);
d3372da9 3222 while((qcmd = ulqcmd(&hub->queue)) != NULL)
3223 freeqcmd(qcmd);
08b74f8c
FT		 3224 if(hub->supports != NULL)
3225 {
3226 for(i = 0; hub->supports[i] != NULL; i++)
3227 free(hub->supports[i]);
3228 free(hub->supports);
3229 }
d3372da9 3230 if(hub->nativename != NULL)
3231 free(hub->nativename);
3232 if(hub->nativenick != NULL)
3233 free(hub->nativenick);
1d85f24b 3234 if(hub->charset != NULL)
3235 free(hub->charset);
d3372da9 3236 if(hub->inbuf != NULL)
3237 free(hub->inbuf);
3238 free(hub);
3239}
3240
ffa81d5f
FT		 3241static void hubkill(struct fnetnode *fn)
3242{
3243 struct dchub *hub;
3244
3245 hub = (struct dchub *)fn->data;
d1ef0200 3246 closesock(hub->sk);
ffa81d5f
FT		 3247}
3248
d3372da9 3249static struct fnet dcnet =
3250{
3251 .name = L"dc",
3252 .connect = hubconnect,
3253 .destroy = hubdestroy,
ffa81d5f 3254 .kill = hubkill,
d3372da9 3255 .setnick = hubsetnick,
3256 .reqconn = hubreqconn,
3257 .sendchat = hubsendchat,
3258 .search = hubsearch,
d3372da9 3259};
3260
cab0b442 3261static void peerread(struct socket *sk, struct dcpeer *peer)
d3372da9 3262{
cab0b442 3263 char *newbuf, *p;
8cb2d75b 3264 size_t datalen, cnlen;
cab0b442 3265 struct command *cmd;
5ec60e42 3266
81286a22
FT		 3267 if(peer->state == PEER_CMD) {
3268 if((peer->queue.size > 50) || (peer->inbufdata > 65536))
3269 return;
bd5d862e
FT		 3270 } else if(peer->state == PEER_TTHL) {
3271 } else {
3272 return;
81286a22 3273 }
d3372da9 3274 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
cab0b442 3275 return;
d3372da9 3276 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
3277 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
3278 free(newbuf);
d3372da9 3279 peer->inbufdata += datalen;
9a2d6cb8 3280 if(peer->state == PEER_CMD)
d3372da9 3281 {
cab0b442 3282 p = peer->inbuf;
3283 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
3284 {
3285 *(p++) = 0;
cab0b442 3286 for(cmd = peercmds; cmd->handler != NULL; cmd++)
3287 {
8cb2d75b
FT		 3288 cnlen = strlen(cmd->name);
3289 if(!strncmp(peer->inbuf, cmd->name, cnlen) && ((peer->inbuf[cnlen] == ' ') || (peer->inbuf[cnlen] == 0)))
cab0b442 3290 break;
3291 }
8cb2d75b
FT		 3292 if((cmd->limit == 0) || (peer->queue.size < cmd->limit))
3293 newqcmd(&peer->queue, peer->inbuf);
cab0b442 3294 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
3295 if(cmd->stop)
3296 {
3297 peer->state = PEER_STOP;
3298 break;
3299 }
3300 }
9a2d6cb8 3301 } else if(peer->state == PEER_TTHL) {
3302 handletthl(peer);
d3372da9 3303 }
3304}
3305
cab0b442 3306static void peererror(struct socket *sk, int err, struct dcpeer *peer)
d3372da9 3307{
3308 freedcpeer(peer);
3309}
3310
cab0b442 3311static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
d3372da9 3312{
3313 struct dcpeer *peer;
1c4b02cd 3314 struct dchub *hub;
d3372da9 3315
3316 if(err != 0)
3317 {
3318 putfnetnode(fn);
cab0b442 3319 return;
d3372da9 3320 }
1c4b02cd 3321 hub = fn->data;
d3372da9 3322 peer = newdcpeer(sk);
3323 peer->fn = fn;
3324 peer->accepted = 0;
1c4b02cd 3325 peer->dcppemu = hub->dcppemu;
cab0b442 3326 sk->readcb = (void (*)(struct socket *, void *))peerread;
3327 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3328 sk->data = peer;
d3372da9 3329 socksettos(sk, confgetint("fnet", "fnptos"));
1e9d82b1 3330 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
9a2d6cb8 3331 sendmynick(peer);
3332 sendpeerlock(peer);
d3372da9 3333}
3334
d1ef0200 3335static void peeraccept(struct lport *lp, struct socket *newsk, void *data)
d3372da9 3336{
3337 struct dcpeer *peer;
3338
3339 peer = newdcpeer(newsk);
3340 peer->accepted = 1;
cab0b442 3341 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3342 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3343 newsk->data = peer;
d3372da9 3344 socksettos(newsk, confgetint("fnet", "fnptos"));
1e9d82b1 3345 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3346}
3347
3348static void updatehmlist(void)
3349{
3350 int i, lev, ic, ret;
3351 struct sharecache *node;
3352 char *buf, *buf2, numbuf[32];
3353 size_t bufsize, bufdata;
3354 int fd, ibuf;
50d8d5c1 3355 FILE *out;
d3372da9 3356
3357 bufdata = 0;
3358 buf = smalloc(bufsize = 65536);
3359 node = shareroot->child;
3360 lev = 0;
3361 while(1)
3362 {
3363 ic = 0;
1d85f24b 3364 /* Use DCCHARSET in $Get paths until further researched... */
d3372da9 3365 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3366 {
3367 for(i = 0; i < lev; i++)
3368 addtobuf(buf, 9);
3369 bufcat(buf, buf2, strlen(buf2));
3370 free(buf2);
3371 if(node->f.b.type == FILE_REG)
3372 {
3373 addtobuf(buf, '|');
dcf7a1a2 3374 sprintf(numbuf, "%ji", (intmax_t)node->size);
d3372da9 3375 bufcat(buf, numbuf, strlen(numbuf));
3376 }
3377 addtobuf(buf, 13);
3378 addtobuf(buf, 10);
3379 } else {
3380 ic = 1;
3381 }
3382 if((node->child != NULL) && !ic)
3383 {
3384 lev++;
3385 node = node->child;
3386 } else if(node->next != NULL) {
3387 node = node->next;
3388 } else {
3389 while(node->next == NULL)
3390 {
3391 lev--;
3392 node = node->parent;
3393 if(node == shareroot)
3394 break;
3395 }
3396 if(node == shareroot)
3397 break;
3398 node = node->next;
3399 }
3400 }
3401 if(hmlistname != NULL)
3402 {
3403 unlink(hmlistname);
3404 free(hmlistname);
3405 }
3406 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3407 if((fd = mkstemp(hmlistname)) < 0)
3408 {
3409 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3410 free(hmlistname);
3411 hmlistname = NULL;
3412 } else {
50d8d5c1 3413 out = fdopen(fd, "w");
d3372da9 3414 /*
3415 * I do not want to implement a good Huffman encoder, and it's not
3416 * like Huffman encoding actually yields any impressive results
3417 * for DC file lists anyway, so I'll just output a bogus
3418 * tree. Implement a good encoder if you want to.
3419 */
50d8d5c1
FT		 3420 fwrite("HE3\r\0", 1, 5, out);
3421 fwrite(&bufdata, 4, 1, out); /* XXX: Endian unsafe */
d3372da9 3422 ibuf = 256;
50d8d5c1 3423 fwrite(&ibuf, 2, 1, out);
d3372da9 3424 ibuf = 8;
3425 for(i = 0; i < 256; i++)
3426 {
50d8d5c1
FT		 3427 fwrite(&i, 1, 1, out);
3428 fwrite(&ibuf, 1, 1, out);
d3372da9 3429 }
3430 for(i = 0; i < 256; i++)
50d8d5c1 3431 fwrite(&i, 1, 1, out);
d3372da9 3432 for(buf2 = buf; bufdata > 0;)
3433 {
50d8d5c1 3434 if((ret = fwrite(buf2, 1, bufdata, out)) < 0)
d3372da9 3435 {
3436 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3437 break;
3438 }
3439 bufdata -= ret;
3440 buf2 += ret;
3441 }
50d8d5c1 3442 fclose(out);
d3372da9 3443 }
3444 free(buf);
3445}
3446
3447static struct xmlent
3448{
3449 wchar_t c;
3450 wchar_t *ent;
3451} entities[] = {
3452 {L'&', L"&amp;"},
3453 {L'\"', L"&#34;"},
3454/* {L'\'', L"&quot;"}, Emulate DC++ escaping by omitting this. */
3455 {L'\0', NULL}
3456};
3457
3458static wchar_t *escapexml(wchar_t *src)
3459{
3460 static wchar_t *buf = NULL;;
3461 int ret, c;
3462 wchar_t nbuf[32];
3463 size_t bufsize, bufdata;
3464 struct xmlent *ent;
3465
3466 if(buf != NULL)
3467 free(buf);
3468 buf = NULL;
3469 bufsize = bufdata = 0;
3470 for(; *src != L'\0'; src++)
3471 {
3472 c = wctob(*src);
3473 if((c > 0) && (c < 32))
3474 {
3475 bufcat(buf, L"&#", 2);
3476 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3477 bufcat(buf, nbuf, ret);
3478 addtobuf(buf, L';');
3479 } else {
3480 for(ent = entities; ent->ent != NULL; ent++)
3481 {
3482 if(ent->c == *src)
3483 {
3484 bufcat(buf, ent->ent, wcslen(ent->ent));
3485 break;
3486 }
3487 }
3488 if(ent->ent == NULL)
3489 addtobuf(buf, *src);
3490 }
3491 }
3492 addtobuf(buf, L'\0');
3493 return(buf);
3494}
3495
3496static void updatexmllist(void)
3497{
3498 int i, fd, lev;
3499 FILE *fs;
3500 char cidbuf[14], *namebuf;
3501 char *hashbuf;
3502 struct sharecache *node;
3503
3504 if(xmllistname != NULL)
3505 {
3506 unlink(xmllistname);
3507 free(xmllistname);
3508 }
3509 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3510 if((fd = mkstemp(xmllistname)) < 0)
3511 {
3512 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3513 free(xmllistname);
3514 xmllistname = NULL;
3515 return;
3516 }
3517 if((fs = fdopen(fd, "w")) == NULL)
3518 {
3519 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3520 unlink(xmllistname);
3521 free(xmllistname);
3522 xmllistname = NULL;
3523 close(fd);
3524 return;
3525 }
3526 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3527 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3528 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3529 cidbuf[i] = 0;
1c4b02cd 3530 if(confgetint("dc", "dcppemu"))
3531 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"DC++ 0.674\">\r\n", cidbuf);
3532 else
3533 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, "DoldaConnect" VERSION);
d3372da9 3534
3535 node = shareroot->child;
3536 lev = 0;
3537 while(1)
3538 {
3539 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3540 {
3541 for(i = 0; i < lev; i++)
3542 fputc('\t', fs);
3543 if(node->child != NULL)
3544 {
3545 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3546 node = node->child;
3547 lev++;
3548 continue;
3549 } else {
dcf7a1a2 3550 fprintf(fs, "<File Name=\"%s\" Size=\"%ji\"", namebuf, (intmax_t)node->size);
d3372da9 3551 if(node->f.b.hastth)
3552 {
3553 hashbuf = base32encode(node->hashtth, 24);
3554 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3555 free(hashbuf);
3556 }
3557 fprintf(fs, "/>\r\n");
3558 }
3559 while(node->next == NULL)
3560 {
3561 node = node->parent;
3562 if(node == shareroot)
3563 {
3564 break;
3565 } else {
3566 lev--;
3567 for(i = 0; i < lev; i++)
3568 fputc('\t', fs);
3569 fprintf(fs, "</Directory>\r\n");
3570 }
3571 }
3572 if(node == shareroot)
3573 break;
3574 node = node->next;
3575 }
3576 }
3577
1c4b02cd 3578 if(confgetint("dc", "dcppemu"))
3579 fprintf(fs, "</FileListing>");
3580 else
3581 fprintf(fs, "</FileListing>\r\n");
d3372da9 3582 fclose(fs);
3583}
3584
3585static void updatexmlbz2list(void)
3586{
3587 int err, fd;
3588 FILE *in;
3589 FILE *real;
3590 BZFILE *out;
3591 char buf[1024];
3592 size_t bufdata;
3593
3594 if(xmllistname == NULL)
3595 return;
3596 if((in = fopen(xmllistname, "r")) == NULL)
3597 {
3598 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3599 return;
3600 }
3601 if(xmlbz2listname != NULL)
3602 {
3603 unlink(xmlbz2listname);
3604 free(xmlbz2listname);
3605 }
3606 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3607 if((fd = mkstemp(xmlbz2listname)) < 0)
3608 {
3609 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3610 free(xmlbz2listname);
3611 xmlbz2listname = NULL;
3612 fclose(in);
3613 return;
3614 }
3615 if((real = fdopen(fd, "w")) == NULL)
3616 {
3617 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3618 close(fd);
3619 unlink(xmlbz2listname);
3620 free(xmlbz2listname);
3621 xmlbz2listname = NULL;
3622 fclose(in);
3623 return;
3624 }
3625 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3626 if(err != BZ_OK)
3627 {
3628 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3629 fclose(real);
3630 unlink(xmlbz2listname);
3631 free(xmlbz2listname);
3632 xmlbz2listname = NULL;
3633 fclose(in);
3634 return;
3635 }
3636 while(!feof(in))
3637 {
3638 bufdata = fread(buf, 1, sizeof(buf), in);
3639 BZ2_bzWrite(&err, out, buf, bufdata);
3640 }
3641 fclose(in);
3642 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3643 fclose(real);
3644}
3645
6305c428 3646static void listtimercb(int cancelled, void *uudata)
3647{
3648 listwritetimer = NULL;
3649 if(!cancelled)
3650 updatelists(1);
3651}
3652
3653static void updatelists(int now)
d3372da9 3654{
000ca725 3655 if((hmlistname == NULL) || (xmllistname == NULL) || (xmlbz2listname == NULL))
3656 now = 1;
6305c428 3657 if(!now)
3658 {
3659 if(listwritetimer == NULL)
ddb3658e 3660 listwritetimer = timercallback(ntime() + confgetint("cli", "hashwritedelay"), listtimercb, NULL);
6305c428 3661 return;
3662 }
3663 if(listwritetimer != NULL)
3664 canceltimer(listwritetimer);
d3372da9 3665 updatehmlist();
3666 updatexmllist();
3667 updatexmlbz2list();
6305c428 3668}
3669
3670static int shareupdate(unsigned long long uusharesize, void *data)
3671{
3672 updatelists(0);
d3372da9 3673 return(0);
3674}
3675
7395a37f
FT		 3676static char *quotestr(char *str)
3677{
3678 unsigned char *buf;
3679 unsigned char *p;
3680 size_t bufsize, bufdata;
3681 wchar_t *wbuf;
3682 static char *enc = NULL;
3683 size_t encsize, encdata;
3684
3685 buf = NULL;
3686 bufsize = bufdata = 0;
3687 for(p = (unsigned char *)str; *p; p++)
3688 {
3689 if(*p == '\b')
3690 bufcat(buf, "\\b", 2);
3691 else if(*p == '\t')
3692 bufcat(buf, "\\t", 2);
3693 else if(*p == '\n')
3694 bufcat(buf, "\\n", 2);
3695 else if(*p == '\r')
3696 bufcat(buf, "\\r", 2);
3697 else if(*p == '\\')
3698 bufcat(buf, "\\\\", 2);
3699 else if(*p >= 32)
3700 addtobuf(buf, *p);
3701 else
3702 bprintf(buf, "\\x%02x", *p);
3703 }
3704 addtobuf(buf, 0);
3705 if(enc != NULL)
3706 free(enc);
3707 enc = NULL;
3708 if((wbuf = icmbstowcs((char *)buf, DCCHARSET)) != NULL)
3709 {
3710 enc = icwcstombs(wbuf, NULL);
3711 free(wbuf);
3712 }
3713 if(enc == NULL)
3714 {
3715 encsize = encdata = 0;
3716 for(p = buf; *p; p++) {
3717 if(*p < 128)
3718 addtobuf(enc, *p);
3719 else
3720 bprintf(buf, "\\x%x", *p);
3721 }
3722 }
3723 free(buf);
3724 return(enc);
3725}
3726
c1928259 3727static void logunimpl(char *list, char *cmd, char *args)
7395a37f
FT		 3728{
3729 FILE *log;
3730
3731 if((log = fopen("/tmp/dc-unimpl", "a")) == NULL)
3732 {
3733 flog(LOG_WARNING, "could not open unimpl log: %s", strerror(errno));
3734 return;
3735 }
c1928259
FT		 3736 fputs(list, log);
3737 fputc('\t', log);
7395a37f
FT		 3738 fputs(quotestr(cmd), log);
3739 if(args != NULL)
3740 {
3741 fputc('\t', log);
3742 fputs(quotestr(args), log);
3743 }
3744 fputc('\n', log);
3745 fclose(log);
3746}
3747
d3372da9 3748static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3749{
3750 char *p;
3751 struct command *cmd;
3752
3753 if((p = strchr(qcmd->string, ' ')) != NULL)
3754 *(p++) = 0;
3755 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3756 {
3757 if(!strcmp(cmd->name, qcmd->string))
3758 break;
3759 }
3760 if(cmd->handler != NULL)
c1928259 3761 {
d3372da9 3762 cmd->handler(sk, data, qcmd->string, p);
c1928259
FT		 3763 } else if(confgetint("dc", "logunimpl")) {
3764 if(cmdlist == hubcmds)
3765 logunimpl("hub", qcmd->string, p);
3766 else if(cmdlist == peercmds)
3767 logunimpl("peer", qcmd->string, p);
3768 else
3769 logunimpl("other?!", qcmd->string, p);
3770 }
d3372da9 3771}
3772
3773static int run(void)
3774{
3775 struct fnetnode *fn, *nextfn;
3776 struct dchub *hub;
3777 struct dcpeer *peer, *nextpeer;
3778 struct qcommand *qcmd;
e0731d8c 3779 int ret, quota;
d3372da9 3780
3781 ret = 0;
e0731d8c 3782 quota = 20;
d3372da9 3783 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3784 {
3785 nextfn = fn->next;
3786 if(fn->fnet != &dcnet)
3787 continue;
3788 if(fn->data == NULL)
3789 continue;
3790 hub = (struct dchub *)fn->data;
e0731d8c 3791 while((quota > 0) && ((qcmd = ulqcmd(&hub->queue)) != NULL))
d3372da9 3792 {
3793 if(*qcmd->string == '$')
3794 {
ffa81d5f
FT		 3795 if((hub->sk != NULL) && (hub->sk->state == SOCK_EST))
3796 dispatchcommand(qcmd, hubcmds, hub->sk, fn);
d3372da9 3797 } else if(*qcmd->string != 0) {
ffa81d5f 3798 hubrecvchat(hub->sk, fn, NULL, qcmd->string);
d3372da9 3799 }
3800 freeqcmd(qcmd);
3801 ret = 1;
e0731d8c 3802 quota--;
d3372da9 3803 }
e0731d8c 3804 if(hub->queue.size < 1000)
81286a22 3805 hubread(hub->sk, fn);
e0731d8c
FT		 3806 if(quota < 1)
3807 break;
d3372da9 3808 }
e0731d8c 3809 quota = 20;
2bf4942d 3810 for(peer = peers; peer != NULL; peer = peer->next)
d3372da9 3811 {
2bf4942d 3812 while(!peer->close && (quota > 0) && ((qcmd = ulqcmd(&peer->queue)) != NULL))
d3372da9 3813 {
1e9d82b1 3814 if(peer->timeout != NULL)
3815 canceltimer(peer->timeout);
3816 peer->timeout = timercallback(ntime() + 180, (void (*)(int, void *))peertimeout, peer);
d3372da9 3817 if(*qcmd->string == '$')
3818 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3819 freeqcmd(qcmd);
3820 ret = 1;
e0731d8c 3821 quota--;
d3372da9 3822 }
e0731d8c 3823 if((peer->queue.size < 50) && (peer->inbufdata < 500000))
81286a22 3824 peerread(peer->sk, peer);
e0731d8c
FT		 3825 if(quota < 1)
3826 break;
d3372da9 3827 }
2bf4942d
FT		 3828 for(peer = peers; peer != NULL; peer = nextpeer)
3829 {
3830 nextpeer = peer->next;
3831 if(peer->close)
3832 freedcpeer(peer);
3833 }
d3372da9 3834 return(ret);
3835}
3836
3837static void preinit(int hup)
3838{
3839 if(hup)
3840 return;
3841 regfnet(&dcnet);
3842}
3843
3844static int updateudpport(struct configvar *var, void *uudata)
3845{
3846 struct sockaddr_in addr;
3847 struct socket *newsock;
3848
3849 memset(&addr, 0, sizeof(addr));
3850 addr.sin_family = AF_INET;
3851 addr.sin_port = htons(var->val.num);
3852 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3853 {
3854 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3855 return(0);
3856 }
cab0b442 3857 newsock->readcb = udpread;
d3372da9 3858 if(udpsock != NULL)
3859 putsock(udpsock);
3860 udpsock = newsock;
3861 return(0);
3862}
3863
3864static int updatetcpport(struct configvar *var, void *uudata)
3865{
3866 struct sockaddr_in addr;
d1ef0200 3867 struct lport *newsock;
d3372da9 3868
3869 memset(&addr, 0, sizeof(addr));
3870 addr.sin_family = AF_INET;
3871 addr.sin_port = htons(var->val.num);
3872 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3873 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3874 if(tcpsock != NULL)
d1ef0200 3875 closelport(tcpsock);
d3372da9 3876 tcpsock = newsock;
3877 return(0);
3878}
3879
3880static int init(int hup)
3881{
3882 struct sockaddr_in addr;
3883
3884 if(!hup)
3885 {
3886 GCBREG(sharechangecb, shareupdate, NULL);
3887 if(udpsock != NULL)
3888 putsock(udpsock);
3889 if(tcpsock != NULL)
d1ef0200 3890 closelport(tcpsock);
d3372da9 3891 addr.sin_family = AF_INET;
3892 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3893 addr.sin_port = htons(confgetint("dc", "udpport"));
3894 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3895 {
3896 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3897 return(1);
3898 }
cab0b442 3899 udpsock->readcb = udpread;
d3372da9 3900 addr.sin_port = htons(confgetint("dc", "tcpport"));
3901 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3902 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3903 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3904 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3905 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3906 }
3907 return(0);
3908}
3909
3910static void terminate(void)
3911{
3912 if(hmlistname != NULL)
3913 {
3914 unlink(hmlistname);
3915 free(hmlistname);
3916 }
3917 if(xmllistname != NULL)
3918 {
3919 unlink(xmllistname);
3920 free(xmllistname);
3921 }
3922 if(xmlbz2listname != NULL)
3923 {
3924 unlink(xmlbz2listname);
3925 free(xmlbz2listname);
3926 }
3927}
3928
3929static struct configvar myvars[] =
3930{
d9f89ef5 3931 /** Specifies the share description reported to other DC users. */
d3372da9 3932 {CONF_VAR_STRING, "desc", {.str = L""}},
d9f89ef5 3933 /** Specifies the speed reported to other DC users. Normal values
3934 * are 28.8Kbps, 33.6Kbps, 56Kbps, Satellite, ISDN, DSL, Cable,
3935 * LAN(T1) or LAN(T3)*/
d3372da9 3936 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
d9f89ef5 3937 /** The e-mail address to report to other DC users. */
d3372da9 3938 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
d9f89ef5 3939 /** Specifies a specific UDP port to use for DC search results. If
3940 * left unspecified, a port is allocated dynamically. Useful for
3941 * NAT routers (see also the net.visibleipv4 address for those
3942 * cases). */
d3372da9 3943 {CONF_VAR_INT, "udpport", {.num = 0}},
d9f89ef5 3944 /** Specifies a specific TCP port to use for DC peer
3945 * connections. If left unspecified, a port is allocated
3946 * dynamically. Useful for NAT routers (see also the
3947 * net.visibleipv4 address for those cases). */
d3372da9 3948 {CONF_VAR_INT, "tcpport", {.num = 0}},
d9f89ef5 3949 /** If set to true, doldacond will do its best to emulate DC++
3950 * (currently v0.674). This should be left off if at all possible,
3951 * since turning it on will violate the rules of most hubs and
3952 * thus give hub owners an actual reason to kick you if it is
3953 * detected. It might be needed for some of the more bone-headed
3954 * hub owners, though. Note that DC++ emulation can also be turned
3955 * on or off for individual hubs, overriding this setting. */
1c4b02cd 3956 {CONF_VAR_BOOL, "dcppemu", {.num = 0}},
7395a37f
FT		 3957 /** Use for debugging. If set to true, doldacond will log all
3958 * unknown commands it receives, and their arguments, to
3959 * /tmp/dc-unimpl. */
3960 {CONF_VAR_BOOL, "logunimpl", {.num = 0}},
4b544330
FT		 3961 /** If set to true, doldacond will hide its support for deflate
3962 * compression of transfers from other clients, so that they will
3963 * not request compressed uploads. Compressed transfers may
3964 * consume a non-trivial amount of CPU time on slower machines. */
3965 {CONF_VAR_BOOL, "hidedeflate", {.num = 0}},
d3372da9 3966 {CONF_VAR_END}
3967};
3968
3969static struct module me =
3970{
3971 .conf =
3972 {
3973 .vars = myvars
3974 },
3975 .preinit = preinit,
3976 .init = init,
3977 .run = run,
3978 .terminate = terminate,
3979 .name = "dc"
3980};
3981
3982MODULE(me)
Dolda Connect